138889922800 has 60 divisors (see below), whose sum is σ = 333918900640. Its totient is φ = 55516700160.

The previous prime is 138889922797. The next prime is 138889922881. The reversal of 138889922800 is 8229988831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447196 + ... + 691204.

Almost surely, 2^138889922800 is an apocalyptic number.

138889922800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138889922800 is an abundant number, since it is smaller than the sum of its proper divisors (195028977840).

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

138889922800 is a wasteful number, since it uses less digits than its factorization.

138889922800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245450 (or 245439 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 138889922800 in words is "one hundred thirty-eight billion, eight hundred eighty-nine million, nine hundred twenty-two thousand, eight hundred".