138902918196 has 24 divisors (see below), whose sum is σ = 370407782080. Its totient is φ = 39686548032.

The previous prime is 138902918183. The next prime is 138902918213. The reversal of 138902918196 is 691819209831.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826803001 + ... + 826803168.

Almost surely, 2^138902918196 is an apocalyptic number.

It is an amenable number.

138902918196 is an abundant number, since it is smaller than the sum of its proper divisors (231504863884).

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

138902918196 is a wasteful number, since it uses less digits than its factorization.

138902918196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653606183 (or 1653606181 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 57.

The spelling of 138902918196 in words is "one hundred thirty-eight billion, nine hundred two million, nine hundred eighteen thousand, one hundred ninety-six".