138831146875 has 12 divisors (see below), whose sum is σ = 173527831008. Its totient is φ = 111064915000.

The previous prime is 138831146869. The next prime is 138831146887. The reversal of 138831146875 is 578641138831.

It is not a de Polignac number, because 138831146875 - 2²⁹ = 138294275963 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22209859 + ... + 22216108.

It is an arithmetic number, because the mean of its divisors is an integer number (14460652584).

Almost surely, 2^138831146875 is an apocalyptic number.

138831146875 is a deficient number, since it is larger than the sum of its proper divisors (34696684133).

138831146875 is an frugal number, since it uses more digits than its factorization.

138831146875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44425992 (or 44425972 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The spelling of 138831146875 in words is "one hundred thirty-eight billion, eight hundred thirty-one million, one hundred forty-six thousand, eight hundred seventy-five".