72818874695232 has 84 divisors (see below), whose sum is σ = 208847668623360. Its totient is φ = 24258362026752.

The previous prime is 72818874695173. The next prime is 72818874695257. The reversal of 72818874695232 is 23259647881827.

72818874695232 is a `hidden beast` number, since 7 + 2 + 8 + 1 + 8 + 87 + 469 + 52 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37052232 + ... + 38968007.

Almost surely, 2^{72818874695232} is an apocalyptic number.

72818874695232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72818874695232 is an abundant number, since it is smaller than the sum of its proper divisors (136028793928128).

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

72818874695232 is a wasteful number, since it uses less digits than its factorization.

72818874695232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76021920 (or 76021907 counting only the distinct ones).

The product of its digits is 650280960, while the sum is 72.

The spelling of 72818874695232 in words is "seventy-two trillion, eight hundred eighteen billion, eight hundred seventy-four million, six hundred ninety-five thousand, two hundred thirty-two".