138632637100 has 36 divisors (see below), whose sum is σ = 300897569448. Its totient is φ = 55441120000.

The previous prime is 138632637097. The next prime is 138632637107. The reversal of 138632637100 is 1736236831.

It is not an unprimeable number, because it can be changed into a prime (138632637107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325275 + ... + 618925.

It is an arithmetic number, because the mean of its divisors is an integer number (8358265818).

Almost surely, 2^138632637100 is an apocalyptic number.

138632637100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138632637100 is an abundant number, since it is smaller than the sum of its proper divisors (162264932348).

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

138632637100 is a wasteful number, since it uses less digits than its factorization.

138632637100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298386 (or 298379 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 138632637100 in words is "one hundred thirty-eight billion, six hundred thirty-two million, six hundred thirty-seven thousand, one hundred".