57811232144 has 20 divisors (see below), whose sum is σ = 112013180400. Its totient is φ = 28904604960.

The previous prime is 57811232117. The next prime is 57811232161. The reversal of 57811232144 is 44123211875.

It is a happy number.

57811232144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57811232098 and 57811232107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657707 + ... + 740405.

It is an arithmetic number, because the mean of its divisors is an integer number (5600659020).

Almost surely, 2^57811232144 is an apocalyptic number.

It is an amenable number.

57811232144 is a deficient number, since it is larger than the sum of its proper divisors (54201948256).

57811232144 is a wasteful number, since it uses less digits than its factorization.

57811232144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126398 (or 126392 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The spelling of 57811232144 in words is "fifty-seven billion, eight hundred eleven million, two hundred thirty-two thousand, one hundred forty-four".