138375603996 has 48 divisors (see below), whose sum is σ = 373672535040. Its totient is φ = 39035430720.

The previous prime is 138375603959. The next prime is 138375604001. The reversal of 138375603996 is 699306573831.

It is a super-2 number, since 2×138375603996² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 10419495 + ... + 10432766.

It is an arithmetic number, because the mean of its divisors is an integer number (7784844480).

Almost surely, 2^138375603996 is an apocalyptic number.

It is an amenable number.

138375603996 is an abundant number, since it is smaller than the sum of its proper divisors (235296931044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138375603996 is a wasteful number, since it uses less digits than its factorization.

138375603996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852354 (or 20852352 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 60.

It can be divided in two parts, 138375 and 603996, that added together give a triangular number (742371 = T₁₂₁₈).

The spelling of 138375603996 in words is "one hundred thirty-eight billion, three hundred seventy-five million, six hundred three thousand, nine hundred ninety-six".