138239186118 has 32 divisors (see below), whose sum is σ = 301644518400. Its totient is φ = 41886252960.

The previous prime is 138239186089. The next prime is 138239186159. The reversal of 138239186118 is 811681932831.

It is a super-2 number, since 2×138239186118² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 551371 + ... + 761897.

It is an arithmetic number, because the mean of its divisors is an integer number (9426391200).

Almost surely, 2^138239186118 is an apocalyptic number.

138239186118 is an abundant number, since it is smaller than the sum of its proper divisors (163405332282).

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

138239186118 is a wasteful number, since it uses less digits than its factorization.

138239186118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220492.

The product of its digits is 497664, while the sum is 51.

The spelling of 138239186118 in words is "one hundred thirty-eight billion, two hundred thirty-nine million, one hundred eighty-six thousand, one hundred eighteen".