138875013875 has 32 divisors (see below), whose sum is σ = 186898193664. Its totient is φ = 102416400000.

The previous prime is 138875013857. The next prime is 138875013887. The reversal of 138875013875 is 578310578831.

It is not a de Polignac number, because 138875013875 - 2²⁰ = 138873965299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138875013875.

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 31 ways as a sum of consecutive naturals, for example, 1163477 + ... + 1277273.

It is an arithmetic number, because the mean of its divisors is an integer number (5840568552).

Almost surely, 2^138875013875 is an apocalyptic number.

138875013875 is a deficient number, since it is larger than the sum of its proper divisors (48023179789).

138875013875 is a wasteful number, since it uses less digits than its factorization.

138875013875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114576 (or 114566 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 56.

The spelling of 138875013875 in words is "one hundred thirty-eight billion, eight hundred seventy-five million, thirteen thousand, eight hundred seventy-five".