57777720012 has 48 divisors (see below), whose sum is σ = 149854213600. Its totient is φ = 19251509760.

The previous prime is 57777719999. The next prime is 57777720023. The reversal of 57777720012 is 21002777775.

57777720012 is a `hidden beast` number, since 577 + 7 + 7 + 72 + 0 + 0 + 1 + 2 = 666.

57777720012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57777720012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166164 + ... + 378372.

Almost surely, 2^57777720012 is an apocalyptic number.

It is an amenable number.

57777720012 is an abundant number, since it is smaller than the sum of its proper divisors (92076493588).

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

57777720012 is a wasteful number, since it uses less digits than its factorization.

57777720012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214743 (or 214735 counting only the distinct ones).

The product of its (nonzero) digits is 336140, while the sum is 45.

The spelling of 57777720012 in words is "fifty-seven billion, seven hundred seventy-seven million, seven hundred twenty thousand, twelve".