72511730272 has 24 divisors (see below), whose sum is σ = 142763513256. Its totient is φ = 36254330112.

The previous prime is 72511730219. The next prime is 72511730281. The reversal of 72511730272 is 27203711527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318428 + ... + 1372324.

It is an arithmetic number, because the mean of its divisors is an integer number (5948479719).

Almost surely, 2^72511730272 is an apocalyptic number.

It is an amenable number.

72511730272 is a deficient number, since it is larger than the sum of its proper divisors (70251782984).

72511730272 is a wasteful number, since it uses less digits than its factorization.

72511730272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95950 (or 95942 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The spelling of 72511730272 in words is "seventy-two billion, five hundred eleven million, seven hundred thirty thousand, two hundred seventy-two".