18793044164 has 6 divisors (see below), whose sum is σ = 32887827294. Its totient is φ = 9396522080.

The previous prime is 18793044157. The next prime is 18793044187. The reversal of 18793044164 is 46144039781.

It can be written as a sum of positive squares in only one way, i.e., 14458138564 + 4334905600 = 120242^2 + 65840^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2349130517 + ... + 2349130524.

It is an arithmetic number, because the mean of its divisors is an integer number (5481304549).

Almost surely, 2^18793044164 is an apocalyptic number.

It is an amenable number.

18793044164 is a deficient number, since it is larger than the sum of its proper divisors (14094783130).

18793044164 is a wasteful number, since it uses less digits than its factorization.

18793044164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698261045 (or 4698261043 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 18793044164 in words is "eighteen billion, seven hundred ninety-three million, forty-four thousand, one hundred sixty-four".