72157273204 has 48 divisors (see below), whose sum is σ = 134791372800. Its totient is φ = 33719929056.

The previous prime is 72157273189. The next prime is 72157273217. The reversal of 72157273204 is 40237275127.

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, 2663077 + ... + 2690035.

It is an arithmetic number, because the mean of its divisors is an integer number (2808153600).

Almost surely, 2^72157273204 is an apocalyptic number.

It is an amenable number.

72157273204 is a deficient number, since it is larger than the sum of its proper divisors (62634099596).

72157273204 is a wasteful number, since it uses less digits than its factorization.

72157273204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27652 (or 27650 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 40.

The spelling of 72157273204 in words is "seventy-two billion, one hundred fifty-seven million, two hundred seventy-three thousand, two hundred four".