72817018460 has 12 divisors (see below), whose sum is σ = 152915738808. Its totient is φ = 29126807376.

The previous prime is 72817018447. The next prime is 72817018489. The reversal of 72817018460 is 6481071827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820425442 + ... + 1820425481.

It is an arithmetic number, because the mean of its divisors is an integer number (12742978234).

Almost surely, 2^72817018460 is an apocalyptic number.

It is an amenable number.

72817018460 is an abundant number, since it is smaller than the sum of its proper divisors (80098720348).

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

72817018460 is a wasteful number, since it uses less digits than its factorization.

72817018460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640850932 (or 3640850930 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 44.

The spelling of 72817018460 in words is "seventy-two billion, eight hundred seventeen million, eighteen thousand, four hundred sixty".