138392999376 has 40 divisors (see below), whose sum is σ = 362412726720. Its totient is φ = 45499067136.

The previous prime is 138392999341. The next prime is 138392999411. The reversal of 138392999376 is 673999293831.

It is an interprime number because it is at equal distance from previous prime (138392999341) and next prime (138392999411).

It is a self number, because there is not a number n which added to its sum of digits gives 138392999376.

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 7 ways as a sum of consecutive naturals, for example, 19744356 + ... + 19751363.

It is an arithmetic number, because the mean of its divisors is an integer number (9060318168).

Almost surely, 2^138392999376 is an apocalyptic number.

138392999376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138392999376 is an abundant number, since it is smaller than the sum of its proper divisors (224019727344).

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

138392999376 is a wasteful number, since it uses less digits than its factorization.

138392999376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39495803 (or 39495797 counting only the distinct ones).

The product of its digits is 119042784, while the sum is 69.

The spelling of 138392999376 in words is "one hundred thirty-eight billion, three hundred ninety-two million, nine hundred ninety-nine thousand, three hundred seventy-six".