19079118138 has 16 divisors (see below), whose sum is σ = 38160118080. Its totient is φ = 6359392416.

The previous prime is 19079118127. The next prime is 19079118181. The reversal of 19079118138 is 83181197091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77131 + ... + 210017.

It is an arithmetic number, because the mean of its divisors is an integer number (2385007380).

Almost surely, 2^19079118138 is an apocalyptic number.

19079118138 is an abundant number, since it is smaller than the sum of its proper divisors (19080999942).

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

19079118138 is a wasteful number, since it uses less digits than its factorization.

19079118138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156821.

The product of its (nonzero) digits is 108864, while the sum is 48.

The spelling of 19079118138 in words is "nineteen billion, seventy-nine million, one hundred eighteen thousand, one hundred thirty-eight".