138310734872 has 16 divisors (see below), whose sum is σ = 259575237600. Its totient is φ = 69090671520.

The previous prime is 138310734869. The next prime is 138310734883. The reversal of 138310734872 is 278437013831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8077904 + ... + 8095007.

It is an arithmetic number, because the mean of its divisors is an integer number (16223452350).

Almost surely, 2^138310734872 is an apocalyptic number.

It is an amenable number.

138310734872 is a deficient number, since it is larger than the sum of its proper divisors (121264502728).

138310734872 is a wasteful number, since it uses less digits than its factorization.

138310734872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16173986 (or 16173982 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 138310734872 in words is "one hundred thirty-eight billion, three hundred ten million, seven hundred thirty-four thousand, eight hundred seventy-two".