138677347290 has 32 divisors (see below), whose sum is σ = 332839907136. Its totient is φ = 36979040000.

The previous prime is 138677347283. The next prime is 138677347349. The reversal of 138677347290 is 92743776831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 138677347290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724165 + ... + 895415.

It is an arithmetic number, because the mean of its divisors is an integer number (10401247098).

Almost surely, 2^138677347290 is an apocalyptic number.

138677347290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138677347290 is an abundant number, since it is smaller than the sum of its proper divisors (194162559846).

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

138677347290 is a wasteful number, since it uses less digits than its factorization.

138677347290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198254.

The product of its (nonzero) digits is 10668672, while the sum is 57.

The spelling of 138677347290 in words is "one hundred thirty-eight billion, six hundred seventy-seven million, three hundred forty-seven thousand, two hundred ninety".