138786561700 has 36 divisors (see below), whose sum is σ = 301795683840. Its totient is φ = 55398708640.

The previous prime is 138786561679. The next prime is 138786561713. The reversal of 138786561700 is 7165687831.

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, 1400812 + ... + 1496611.

It is an arithmetic number, because the mean of its divisors is an integer number (8383213440).

Almost surely, 2^138786561700 is an apocalyptic number.

138786561700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138786561700 is an abundant number, since it is smaller than the sum of its proper divisors (163009122140).

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

138786561700 is a wasteful number, since it uses less digits than its factorization.

138786561700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897916 (or 2897909 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 138786561700 in words is "one hundred thirty-eight billion, seven hundred eighty-six million, five hundred sixty-one thousand, seven hundred".