72717911814 has 32 divisors (see below), whose sum is σ = 145756765440. Its totient is φ = 24185868512.

The previous prime is 72717911809. The next prime is 72717911857. The reversal of 72717911814 is 41811971727.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6326917 + ... + 6338399.

It is an arithmetic number, because the mean of its divisors is an integer number (4554898920).

Almost surely, 2^72717911814 is an apocalyptic number.

72717911814 is an abundant number, since it is smaller than the sum of its proper divisors (73038853626).

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

72717911814 is a wasteful number, since it uses less digits than its factorization.

72717911814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724.

The product of its digits is 197568, while the sum is 48.

The spelling of 72717911814 in words is "seventy-two billion, seven hundred seventeen million, nine hundred eleven thousand, eight hundred fourteen".