138328712447168 has 28 divisors (see below), whose sum is σ = 278362180162512. Its totient is φ = 68190210359040.

The previous prime is 138328712447129. The next prime is 138328712447179. The reversal of 138328712447168 is 861744217823831.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15221024555 + ... + 15221033642.

Almost surely, 2^{138328712447168} is an apocalyptic number.

It is an amenable number.

138328712447168 is an abundant number, since it is smaller than the sum of its proper divisors (140033467715344).

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

138328712447168 is an equidigital number, since it uses as much as digits as its factorization.

138328712447168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30442058280 (or 30442058270 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 65.

The spelling of 138328712447168 in words is "one hundred thirty-eight trillion, three hundred twenty-eight billion, seven hundred twelve million, four hundred forty-seven thousand, one hundred sixty-eight".