138592139892 has 24 divisors (see below), whose sum is σ = 323592925152. Its totient is φ = 46167199200.

The previous prime is 138592139863. The next prime is 138592139897. The reversal of 138592139892 is 298931295831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138592139897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3753459 + ... + 3790202.

It is an arithmetic number, because the mean of its divisors is an integer number (13483038548).

Almost surely, 2^138592139892 is an apocalyptic number.

138592139892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138592139892 is an abundant number, since it is smaller than the sum of its proper divisors (185000785260).

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

138592139892 is a wasteful number, since it uses less digits than its factorization.

138592139892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545199 (or 7545197 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 60.

The spelling of 138592139892 in words is "one hundred thirty-eight billion, five hundred ninety-two million, one hundred thirty-nine thousand, eight hundred ninety-two".