138887077200 has 60 divisors (see below), whose sum is σ = 444901607808. Its totient is φ = 37036553600.

The previous prime is 138887077171. The next prime is 138887077213. The reversal of 138887077200 is 2770788831.

It is a tau number, because it is divible by the number of its divisors (60).

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, 57868416 + ... + 57870815.

Almost surely, 2^138887077200 is an apocalyptic number.

138887077200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138887077200 is an abundant number, since it is smaller than the sum of its proper divisors (306014530608).

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

138887077200 is a wasteful number, since it uses less digits than its factorization.

138887077200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115739252 (or 115739241 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 51.

The spelling of 138887077200 in words is "one hundred thirty-eight billion, eight hundred eighty-seven million, seventy-seven thousand, two hundred".