151969123872 has 36 divisors (see below), whose sum is σ = 432162196830. Its totient is φ = 50656374528.

The previous prime is 151969123847. The next prime is 151969123909. The reversal of 151969123872 is 278321969151.

It is a happy number.

151969123872 is a `hidden beast` number, since 1 + 519 + 6 + 91 + 2 + 38 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 107581376016 + 44387747856 = 327996^2 + 210684^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×151969123872² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263834997 + ... + 263835572.

Almost surely, 2^151969123872 is an apocalyptic number.

151969123872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151969123872 is an abundant number, since it is smaller than the sum of its proper divisors (280193072958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151969123872 is a wasteful number, since it uses less digits than its factorization.

151969123872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527670585 (or 527670574 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The spelling of 151969123872 in words is "one hundred fifty-one billion, nine hundred sixty-nine million, one hundred twenty-three thousand, eight hundred seventy-two".