18702768056 has 24 divisors (see below), whose sum is σ = 40793028120. Its totient is φ = 8015471856.

The previous prime is 18702768043. The next prime is 18702768079. The reversal of 18702768056 is 65086720781.

It is a junction number, because it is equal to n+sod(n) for n = 18702767995 and 18702768013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23855180 + ... + 23855963.

It is an arithmetic number, because the mean of its divisors is an integer number (1699709505).

Almost surely, 2^18702768056 is an apocalyptic number.

It is an amenable number.

18702768056 is an abundant number, since it is smaller than the sum of its proper divisors (22090260064).

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

18702768056 is a wasteful number, since it uses less digits than its factorization.

18702768056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47711163 (or 47711152 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 18702768056 in words is "eighteen billion, seven hundred two million, seven hundred sixty-eight thousand, fifty-six".