72727636400 has 30 divisors (see below), whose sum is σ = 174728147412. Its totient is φ = 29091054400.

The previous prime is 72727636357. The next prime is 72727636433. The reversal of 72727636400 is 463672727.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90909146 + ... + 90909945.

Almost surely, 2^72727636400 is an apocalyptic number.

It is an amenable number.

72727636400 is an abundant number, since it is smaller than the sum of its proper divisors (102000511012).

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

72727636400 is a wasteful number, since it uses less digits than its factorization.

72727636400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181819109 (or 181819098 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 44.

The spelling of 72727636400 in words is "seventy-two billion, seven hundred twenty-seven million, six hundred thirty-six thousand, four hundred".