18727360113 has 16 divisors (see below), whose sum is σ = 31131196416. Its totient is φ = 9728498640.

The previous prime is 18727360049. The next prime is 18727360117. The reversal of 18727360113 is 31106372781.

It is not a de Polignac number, because 18727360113 - 2⁶ = 18727360049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18727360117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40535181 + ... + 40535642.

It is an arithmetic number, because the mean of its divisors is an integer number (1945699776).

Almost surely, 2^18727360113 is an apocalyptic number.

It is an amenable number.

18727360113 is a deficient number, since it is larger than the sum of its proper divisors (12403836303).

18727360113 is a wasteful number, since it uses less digits than its factorization.

18727360113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81070844.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 18727360113 in words is "eighteen billion, seven hundred twenty-seven million, three hundred sixty thousand, one hundred thirteen".