138418118670 has 64 divisors (see below), whose sum is σ = 359900029440. Its totient is φ = 33868111488.

The previous prime is 138418118669. The next prime is 138418118711. The reversal of 138418118670 is 76811814831.

It is a super-2 number, since 2×138418118670² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 997500 + ... + 1127759.

It is an arithmetic number, because the mean of its divisors is an integer number (5623437960).

Almost surely, 2^138418118670 is an apocalyptic number.

138418118670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138418118670 is an abundant number, since it is smaller than the sum of its proper divisors (221481910770).

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

138418118670 is a wasteful number, since it uses less digits than its factorization.

138418118670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125449.

The product of its (nonzero) digits is 258048, while the sum is 48.

The spelling of 138418118670 in words is "one hundred thirty-eight billion, four hundred eighteen million, one hundred eighteen thousand, six hundred seventy".