57912806856 has 32 divisors (see below), whose sum is σ = 146821204800. Its totient is φ = 19032377280.

The previous prime is 57912806851. The next prime is 57912806881. The reversal of 57912806856 is 65860821975.

It is a junction number, because it is equal to n+sod(n) for n = 57912806796 and 57912806805.

It is not an unprimeable number, because it can be changed into a prime (57912806851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16991491 + ... + 16994898.

It is an arithmetic number, because the mean of its divisors is an integer number (4588162650).

Almost surely, 2^57912806856 is an apocalyptic number.

It is an amenable number.

57912806856 is an abundant number, since it is smaller than the sum of its proper divisors (88908397944).

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

57912806856 is a wasteful number, since it uses less digits than its factorization.

57912806856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33986469 (or 33986465 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 57912806856 in words is "fifty-seven billion, nine hundred twelve million, eight hundred six thousand, eight hundred fifty-six".