57031712444 has 48 divisors (see below), whose sum is σ = 120155750400. Its totient is φ = 23138571456.

The previous prime is 57031712411. The next prime is 57031712453. The reversal of 57031712444 is 44421713075.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 57031712398 and 57031712407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691397 + ... + 769475.

It is an arithmetic number, because the mean of its divisors is an integer number (2503244800).

Almost surely, 2^57031712444 is an apocalyptic number.

It is an amenable number.

57031712444 is an abundant number, since it is smaller than the sum of its proper divisors (63124037956).

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

57031712444 is a wasteful number, since it uses less digits than its factorization.

57031712444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79482 (or 79480 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 57031712444 in words is "fifty-seven billion, thirty-one million, seven hundred twelve thousand, four hundred forty-four".