18742856560704 has 84 divisors (see below), whose sum is σ = 55033331693340. Its totient is φ = 6095237898240.

The previous prime is 18742856560639. The next prime is 18742856560717. The reversal of 18742856560704 is 40706565824781.

18742856560704 is a `hidden beast` number, since 1 + 8 + 7 + 4 + 2 + 8 + 565 + 60 + 7 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10510823361600 + 8232033199104 = 3242040^2 + 2869152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396801769 + ... + 396849000.

It is an arithmetic number, because the mean of its divisors is an integer number (655158710635).

Almost surely, 2^{18742856560704} is an apocalyptic number.

It is an amenable number.

18742856560704 is an abundant number, since it is smaller than the sum of its proper divisors (36290475132636).

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

18742856560704 is a wasteful number, since it uses less digits than its factorization.

18742856560704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793650828 (or 793650815 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 63.

The spelling of 18742856560704 in words is "eighteen trillion, seven hundred forty-two billion, eight hundred fifty-six million, five hundred sixty thousand, seven hundred four".