72597521108 has 24 divisors (see below), whose sum is σ = 145258381632. Its totient is φ = 31099650624.

The previous prime is 72597521053. The next prime is 72597521119. The reversal of 72597521108 is 80112579527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500066 + ... + 628697.

It is an arithmetic number, because the mean of its divisors is an integer number (6052432568).

Almost surely, 2^72597521108 is an apocalyptic number.

It is an amenable number.

72597521108 is an abundant number, since it is smaller than the sum of its proper divisors (72660860524).

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

72597521108 is a wasteful number, since it uses less digits than its factorization.

72597521108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131071 (or 1131069 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 72597521108 in words is "seventy-two billion, five hundred ninety-seven million, five hundred twenty-one thousand, one hundred eight".