57112961904 has 120 divisors (see below), whose sum is σ = 162605489904. Its totient is φ = 18708480000.

The previous prime is 57112961903. The next prime is 57112961923. The reversal of 57112961904 is 40916921175.

57112961904 is a `hidden beast` number, since 5 + 7 + 1 + 1 + 29 + 619 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 57112961904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57112961903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12743344 + ... + 12747824.

Almost surely, 2^57112961904 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 57112961904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81302744952).

57112961904 is an abundant number, since it is smaller than the sum of its proper divisors (105492528000).

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

57112961904 is a wasteful number, since it uses less digits than its factorization.

57112961904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6007 (or 5998 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 57112961904 in words is "fifty-seven billion, one hundred twelve million, nine hundred sixty-one thousand, nine hundred four".