18137742188 has 12 divisors (see below), whose sum is σ = 31754452632. Its totient is φ = 9065041440.

The previous prime is 18137742179. The next prime is 18137742193. The reversal of 18137742188 is 88124773181.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946745 + ... + 965712.

It is an arithmetic number, because the mean of its divisors is an integer number (2646204386).

Almost surely, 2^18137742188 is an apocalyptic number.

It is an amenable number.

18137742188 is a deficient number, since it is larger than the sum of its proper divisors (13616710444).

18137742188 is a wasteful number, since it uses less digits than its factorization.

18137742188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914832 (or 1914830 counting only the distinct ones).

The product of its digits is 602112, while the sum is 50.

The spelling of 18137742188 in words is "eighteen billion, one hundred thirty-seven million, seven hundred forty-two thousand, one hundred eighty-eight".