57272033644 has 24 divisors (see below), whose sum is σ = 115831084320. Its totient is φ = 24269367936.

The previous prime is 57272033587. The next prime is 57272033653. The reversal of 57272033644 is 44633027275.

It is a self number, because there is not a number n which added to its sum of digits gives 57272033644.

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, 11488687 + ... + 11493670.

It is an arithmetic number, because the mean of its divisors is an integer number (4826295180).

Almost surely, 2^57272033644 is an apocalyptic number.

It is an amenable number.

57272033644 is an abundant number, since it is smaller than the sum of its proper divisors (58559050676).

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

57272033644 is a wasteful number, since it uses less digits than its factorization.

57272033644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22982457 (or 22982455 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 57272033644 in words is "fifty-seven billion, two hundred seventy-two million, thirty-three thousand, six hundred forty-four".