72157942932 has 12 divisors (see below), whose sum is σ = 168368533536. Its totient is φ = 24052647640.

The previous prime is 72157942903. The next prime is 72157942937. The reversal of 72157942932 is 23924975127.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72157942937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3006580944 + ... + 3006580967.

It is an arithmetic number, because the mean of its divisors is an integer number (14030711128).

Almost surely, 2^72157942932 is an apocalyptic number.

It is an amenable number.

72157942932 is an abundant number, since it is smaller than the sum of its proper divisors (96210590604).

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

72157942932 is a wasteful number, since it uses less digits than its factorization.

72157942932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013161918 (or 6013161916 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The spelling of 72157942932 in words is "seventy-two billion, one hundred fifty-seven million, nine hundred forty-two thousand, nine hundred thirty-two".