8138626186 has 16 divisors (see below), whose sum is σ = 12353919264. Its totient is φ = 4020942384.

The previous prime is 8138626163. The next prime is 8138626213. The reversal of 8138626186 is 6816268318.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15756 + ... + 128551.

It is an arithmetic number, because the mean of its divisors is an integer number (772119954).

Almost surely, 2^8138626186 is an apocalyptic number.

8138626186 is a deficient number, since it is larger than the sum of its proper divisors (4215293078).

8138626186 is a wasteful number, since it uses less digits than its factorization.

8138626186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144645.

The product of its digits is 663552, while the sum is 49.

The square root of 8138626186 is about 90214.3347035270. The cubic root of 8138626186 is about 2011.4860907461.

The spelling of 8138626186 in words is "eight billion, one hundred thirty-eight million, six hundred twenty-six thousand, one hundred eighty-six".