138196574736 has 40 divisors (see below), whose sum is σ = 389463075744. Its totient is φ = 41877749760.

The previous prime is 138196574701. The next prime is 138196574773. The reversal of 138196574736 is 637475691831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 138196574736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130867441 + ... + 130868496.

Almost surely, 2^138196574736 is an apocalyptic number.

138196574736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138196574736 is an abundant number, since it is smaller than the sum of its proper divisors (251266501008).

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

138196574736 is a wasteful number, since it uses less digits than its factorization.

138196574736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261735959 (or 261735953 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 60.

The spelling of 138196574736 in words is "one hundred thirty-eight billion, one hundred ninety-six million, five hundred seventy-four thousand, seven hundred thirty-six".