57147748856 has 32 divisors (see below), whose sum is σ = 116908012800. Its totient is φ = 25972940640.

The previous prime is 57147748849. The next prime is 57147748871. The reversal of 57147748856 is 65884774175.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735935 + ... + 809873.

It is an arithmetic number, because the mean of its divisors is an integer number (3653375400).

Almost surely, 2^57147748856 is an apocalyptic number.

It is an amenable number.

57147748856 is an abundant number, since it is smaller than the sum of its proper divisors (59760263944).

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

57147748856 is a wasteful number, since it uses less digits than its factorization.

57147748856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82739 (or 82735 counting only the distinct ones).

The product of its digits is 52684800, while the sum is 62.

The spelling of 57147748856 in words is "fifty-seven billion, one hundred forty-seven million, seven hundred forty-eight thousand, eight hundred fifty-six".