138172315076 has 12 divisors (see below), whose sum is σ = 241892098560. Its totient is φ = 69060286920.

The previous prime is 138172315051. The next prime is 138172315111. The reversal of 138172315076 is 670513271831.

It is a super-2 number, since 2×138172315076² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 6455636 + ... + 6477003.

It is an arithmetic number, because the mean of its divisors is an integer number (20157674880).

Almost surely, 2^138172315076 is an apocalyptic number.

It is an amenable number.

138172315076 is a deficient number, since it is larger than the sum of its proper divisors (103719783484).

138172315076 is a wasteful number, since it uses less digits than its factorization.

138172315076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935314 (or 12935312 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 138172315076 in words is "one hundred thirty-eight billion, one hundred seventy-two million, three hundred fifteen thousand, seventy-six".