10,000,000,000 (ten billion) is the natural number following 9,999,999,999 and preceding 10,000,000,001.

In scientific notation, it is written as 1010. It can be also written in tetration notation as 210.

10,000,000,000 is also the fifth power of 100 and also the square of 100,000.

Selected 11-digit numbers (10,000,000,000–99,999,999,999) 10,000,000,000 to 19,999,999,999 10,000,000,019 = smallest 11-digit prime number. 10,000,020,331 = smallest triangular number with 11 digits and the 141,421st triangular number 10,123,457,689 = smallest pandigital prime in base 10. 10,314,998,977 = number of parallelogram polyominoes with 29 cells. 10,460,362,464 = Leyland number using 3 & 21 (321 + 213) 10,480,142,147 = 16th Bell number. 11,123,060,678 = number of free 21-ominoes 11,874,568,703 = number of partitions of 378 into divisors of 378 12,586,269,025 = 50th Fibonacci number. 13,409,202,676 = number of 41-bead necklaces (turning over is allowed) where complements are equivalent 13,743,921,632 = number of 40-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 13,749,310,575 = double factorial of 21 13,800,000,000 = approximate age of the universe in years 13,893,615,154 = number of centered hydrocarbons with 32 carbon atoms 13,967,553,600 = superior highly composite number, superabundant number 14,182,439,040 = smallest 5-perfect number 14,499,777,100 – initial number of fifth century xx00 to xx99 containing exactly seventeen prime numbers (14,499,777,100+n, for n = 7, 9, 13, 19, 21, 33, 37, 43, 51, 61, 63, 67, 69, 79, 81, 91, 97) 14,830,871,802 = number of trees with 30 unlabeled nodes 15,552,771,085 = number of series-reduced planted trees with 39 nodes 16,481,146,479 = number of (unordered, unlabeled) rooted trimmed trees with 31 nodes 17,171,999,198 = number of partitions of 390 into divisors of 390 17,179,869,184 = 1310722 = 417 = 234 17,179,870,340 = Leyland number using 2 & 34 (234 + 342) 17,179,952,705 = Leyland number using 4 & 17 (417 + 174) 17,387,594,880 = position of first occurrence of the string 0123456789 in the decimal expansion of π 17,589,157,530 = number of partitions of 288 into divisors of 288 18,212,890,625 = 1-automorphic number 18,348,340,127 = logarithmic number. 18,457,556,052 = 28th Pell number. 18,632,325,319 = 33rd Wedderburn–Etherington number. 19,577,194,573 = Markov prime 19,606,122,418 = number of partitions of 384 into divisors of 384 19,847,520,789 = number of uniform rooted trees with 29 nodes

20,000,000,000 to 29,999,999,999 20,365,011,074 = 51st Fibonacci number. 21,511,212,261 = number of secondary structures of RNA molecules with 30 nucleotides 22,801,763,489 = 1,000,000,000th prime number 24,466,267,020 = Catalan number 25,209,506,681 = Markov prime 25,669,818,476 = 26th Motzkin number. 26,179,922,024 = number of 42-bead necklaces (turning over is allowed) where complements are equivalent 26,771,144,400 = smallest number divisible by the numbers from 1 to 26 (there is no smaller number divisible by the numbers from 1 to 25 since any number divisible by 2 and 13 must be divisible by 26) 26,817,356,776 = number of 41-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 26,990,077,184 = number of partitions of 240 into divisors of 240 28,088,787,314 = number of signed trees with 19 nodes 28,843,094,837 = number of partitions of 300 into divisors of 300

30,000,000,000 to 39,999,999,999 31,381,070,257 = Leyland number using 3 & 22 (322 + 223) 32,742,002,341 = number of series-reduced planted trees with 40 nodes 32,951,280,099 = 52nd Fibonacci number. 33,489,857,205 = number of prime numbers having twelve digits 33,823,827,452 = number of partially ordered set with 13 unlabeled elements 34,359,739,593 = Leyland number using 2 & 35 (235 + 352) 36,201,693,122 = number of centered hydrocarbons with 33 carbon atoms 37,607,912,018 = number of primes under 1012

40,000,000,000 to 49,999,999,999 40,330,829,030 = number of trees with 31 unlabeled nodes 40,849,449,618 = number of (unordered, unlabeled) rooted trimmed trees with 32 nodes 43,191,857,688 = number of free 22-ominoes 44,208,781,349 = Markov prime 44,214,569,100 = 34th Wedderburn–Etherington number. 44,560,482,149 = Markov prime, 29th Pell number

50,000,000,000 to 59,999,999,999 50,006,393,431 = smallest prime number in base 10 whose expansions is bases 2 to 9 are all valid decimal expansions of (other) primes 51,001,180,160 = largest known (and conjectured to be the largest) triperfect number 51,141,124,287 = number of 43-bead necklaces (turning over is allowed) where complements are equivalent 51,283,502,951 = number k such that the sum of the squares of the first k primes is divisible by k. 52,308,750,878 = number of uniform rooted trees with 30 nodes 52,357,746,896 = number of 42-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 53,316,291,173 = 53rd Fibonacci number. 53,745,962,199 = number of secondary structures of RNA molecules with 31 nucleotides 55,000,815,222 = number of parallelogram polyominoes with 31 cells. 55,420,693,056 = 8th square triangular number.

60,000,000,000 to 69,999,999,999 61,871,424,992 = approximate number of planck lengths to amount to one yoctometer, previously the smallest SI unit of length, until the rontometer and quectometer were added in 2022. 65,118,683,800 – initial number of sixth century xx00 to xx99 containing exactly seventeen prime numbers (65,118,683,800+n, for n = 3, 7, 9, 13, 37, 43, 49, 57, 63, 67, 79, 81, 87, 91, 93, 97, 99) 68,719,476,736 = 2621442 = 40963 = 5124 = 646 = 169 = 812 = 418 = 236 68,719,478,032 = Leyland number using 2 & 36 (236 + 362) 68,719,581,712 = Leyland number using 4 & 18 (418 + 184) 68,998,193,212 = number of series-reduced planted trees with 41 nodes

70,000,000,000 to 79,999,999,999 73,007,772,802 = 27th Motzkin number.

80,000,000,000 to 89,999,999,999 80,313,433,200 = highly composite number, smallest number divisible by the numbers from 1 to 28 81,393,657,019 = 14th alternating factorial. 81,749,606,400 = double factorial of 22 81,787,109,376 = 1-automorphic number 82,864,869,804 = 17th Bell number. 86,267,571,272 = 54th Fibonacci number. 87,178,291,199 = factorial prime 87,178,291,200 = 14!

90,000,000,000 to 99,999,999,999 91,482,563,640 = Catalan number 93,000,000,000 = approximate diameter of the observable universe in light-years. 94,143,190,994 = Leyland number using 3 & 23 (323 + 233) 94,550,040,702 = number of centered hydrocarbons with 34 carbon atoms 99,957,747,388 = number of 44-bead necklaces (turning over is allowed) where complements are equivalent 99,999,999,977 = largest 11-digit prime number

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