138607054850 has 144 divisors (see below), whose sum is σ = 303933047040. Its totient is φ = 46846800000.

The previous prime is 138607054763. The next prime is 138607054897. The reversal of 138607054850 is 58450706831.

It is a junction number, because it is equal to n+sod(n) for n = 138607054795 and 138607054804.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6080975 + ... + 6103725.

It is an arithmetic number, because the mean of its divisors is an integer number (2110646160).

Almost surely, 2^138607054850 is an apocalyptic number.

138607054850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138607054850 is an abundant number, since it is smaller than the sum of its proper divisors (165325992190).

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

138607054850 is a wasteful number, since it uses less digits than its factorization.

138607054850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22857 (or 22841 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 138607054850 in words is "one hundred thirty-eight billion, six hundred seven million, fifty-four thousand, eight hundred fifty".