72887915700 has 54 divisors (see below), whose sum is σ = 228463125254. Its totient is φ = 19436777280.

The previous prime is 72887915677. The next prime is 72887915717. The reversal of 72887915700 is 751978827.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21995262864 + 50892652836 = 148308^2 + 225594^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 40492387 + ... + 40494186.

Almost surely, 2^72887915700 is an apocalyptic number.

It is an amenable number.

72887915700 is an abundant number, since it is smaller than the sum of its proper divisors (155575209554).

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

72887915700 is a wasteful number, since it uses less digits than its factorization.

72887915700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80986593 (or 80986583 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The spelling of 72887915700 in words is "seventy-two billion, eight hundred eighty-seven million, nine hundred fifteen thousand, seven hundred".