72307468632 has 64 divisors (see below), whose sum is σ = 215575073280. Its totient is φ = 19761046272.

The previous prime is 72307468577. The next prime is 72307468657. The reversal of 72307468632 is 23686470327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9352693 + ... + 9360420.

It is an arithmetic number, because the mean of its divisors is an integer number (3368360520).

Almost surely, 2^72307468632 is an apocalyptic number.

It is an amenable number.

72307468632 is an abundant number, since it is smaller than the sum of its proper divisors (143267604648).

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

72307468632 is a wasteful number, since it uses less digits than its factorization.

72307468632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713152 (or 18713148 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 72307468632 in words is "seventy-two billion, three hundred seven million, four hundred sixty-eight thousand, six hundred thirty-two".