57918820795920 has 400 divisors, whose sum is σ = 229963991862528. Its totient is φ = 13234780615680.

The previous prime is 57918820795907. The next prime is 57918820795937. The reversal of 57918820795920 is 2959702881975.

57918820795920 is a `hidden beast` number, since 5 + 7 + 9 + 1 + 8 + 8 + 20 + 7 + 9 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 159077122 + ... + 159440798.

Almost surely, 2^{57918820795920} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57918820795920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114981995931264).

57918820795920 is an abundant number, since it is smaller than the sum of its proper divisors (172045171066608).

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

57918820795920 is a wasteful number, since it uses less digits than its factorization.

57918820795920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367220 (or 367205 counting only the distinct ones).

The product of its (nonzero) digits is 228614400, while the sum is 72.

The spelling of 57918820795920 in words is "fifty-seven trillion, nine hundred eighteen billion, eight hundred twenty million, seven hundred ninety-five thousand, nine hundred twenty".