72645853392 has 120 divisors (see below), whose sum is σ = 244580506560. Its totient is φ = 19663534080.

The previous prime is 72645853367. The next prime is 72645853433. The reversal of 72645853392 is 29335854627.

72645853392 is a `hidden beast` number, since 7 + 26 + 4 + 585 + 3 + 39 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1877409 + ... + 1915712.

It is an arithmetic number, because the mean of its divisors is an integer number (2038170888).

Almost surely, 2^72645853392 is an apocalyptic number.

72645853392 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

72645853392 is an abundant number, since it is smaller than the sum of its proper divisors (171934653168).

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

72645853392 is a wasteful number, since it uses less digits than its factorization.

72645853392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793161 (or 3793152 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 72645853392 in words is "seventy-two billion, six hundred forty-five million, eight hundred fifty-three thousand, three hundred ninety-two".