72864364356 has 81 divisors (see below), whose sum is σ = 214289270559. Its totient is φ = 20815150608.

The previous prime is 72864364337. The next prime is 72864364361. The reversal of 72864364356 is 65346346827.

The square root of 72864364356 is 269934.

It is a perfect power (a square), and thus also a powerful number.

72864364356 is a `hidden beast` number, since 7 + 286 + 4 + 3 + 6 + 4 + 356 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11334015 + ... + 11340441.

Almost surely, 2^72864364356 is an apocalyptic number.

72864364356 is the 269934-th square number.

It is an amenable number.

72864364356 is an abundant number, since it is smaller than the sum of its proper divisors (141424906203).

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

72864364356 is an equidigital number, since it uses as much as digits as its factorization.

72864364356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12878 (or 6439 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

The spelling of 72864364356 in words is "seventy-two billion, eight hundred sixty-four million, three hundred sixty-four thousand, three hundred fifty-six".