12657805704 has 48 divisors (see below), whose sum is σ = 34666760700. Its totient is φ = 4171858944.

The previous prime is 12657805697. The next prime is 12657805723. The reversal of 12657805704 is 40750875621.

12657805704 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 78 + 0 + 570 + 4 = 666.

12657805704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10668824100 + 1988981604 = 103290^2 + 44598^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12657805704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981249 + ... + 994064.

Almost surely, 2^12657805704 is an apocalyptic number.

It is an amenable number.

12657805704 is an abundant number, since it is smaller than the sum of its proper divisors (22008954996).

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

12657805704 is a wasteful number, since it uses less digits than its factorization.

12657805704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975414 (or 1975407 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 12657805704 in words is "twelve billion, six hundred fifty-seven million, eight hundred five thousand, seven hundred four".