72436616531272 has 32 divisors (see below), whose sum is σ = 164351987089920. Its totient is φ = 29218131037440.

The previous prime is 72436616531207. The next prime is 72436616531281. The reversal of 72436616531272 is 27213561663427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38044440504 + ... + 38044442407.

It is an arithmetic number, because the mean of its divisors is an integer number (5135999596560).

Almost surely, 2^{72436616531272} is an apocalyptic number.

It is an amenable number.

72436616531272 is an abundant number, since it is smaller than the sum of its proper divisors (91915370558648).

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

72436616531272 is a wasteful number, since it uses less digits than its factorization.

72436616531272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76088882941 (or 76088882937 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 55.

The spelling of 72436616531272 in words is "seventy-two trillion, four hundred thirty-six billion, six hundred sixteen million, five hundred thirty-one thousand, two hundred seventy-two".