138835402375 has 64 divisors (see below), whose sum is σ = 185783165568. Its totient is φ = 103217203200.

The previous prime is 138835402369. The next prime is 138835402441. The reversal of 138835402375 is 573204538831.

It is not a de Polignac number, because 138835402375 - 2⁹ = 138835401863 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 84810057 + ... + 84811693.

It is an arithmetic number, because the mean of its divisors is an integer number (2902861962).

Almost surely, 2^138835402375 is an apocalyptic number.

138835402375 is a deficient number, since it is larger than the sum of its proper divisors (46947763193).

138835402375 is a wasteful number, since it uses less digits than its factorization.

138835402375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2139 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 138835402375 in words is "one hundred thirty-eight billion, eight hundred thirty-five million, four hundred two thousand, three hundred seventy-five".