18137742179 has 2 divisors, whose sum is σ = 18137742180. Its totient is φ = 18137742178.

The previous prime is 18137742169. The next prime is 18137742193. The reversal of 18137742179 is 97124773181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18137742179 - 2²⁸ = 17869306723 is a prime.

It is not a weakly prime, because it can be changed into another prime (18137742149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9068871089 + 9068871090.

It is an arithmetic number, because the mean of its divisors is an integer number (9068871090).

Almost surely, 2^18137742179 is an apocalyptic number.

18137742179 is a deficient number, since it is larger than the sum of its proper divisors (1).

18137742179 is an equidigital number, since it uses as much as digits as its factorization.

18137742179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 50.

The spelling of 18137742179 in words is "eighteen billion, one hundred thirty-seven million, seven hundred forty-two thousand, one hundred seventy-nine".