72167510038 has 32 divisors (see below), whose sum is σ = 122756306400. Its totient is φ = 31544142336.

The previous prime is 72167510027. The next prime is 72167510047. The reversal of 72167510038 is 83001576127.

It is a super-2 number, since 2×72167510038² (a number of 23 digits) contains 22 as substring.

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, 1502320 + ... + 1549612.

It is an arithmetic number, because the mean of its divisors is an integer number (3836134575).

Almost surely, 2^72167510038 is an apocalyptic number.

72167510038 is a deficient number, since it is larger than the sum of its proper divisors (50588796362).

72167510038 is a wasteful number, since it uses less digits than its factorization.

72167510038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50416.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 72167510038 in words is "seventy-two billion, one hundred sixty-seven million, five hundred ten thousand, thirty-eight".