138025271792 has 20 divisors (see below), whose sum is σ = 267660867120. Its totient is φ = 68951499648.

The previous prime is 138025271771. The next prime is 138025271801. The reversal of 138025271792 is 297172520831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3802388 + ... + 3838515.

It is an arithmetic number, because the mean of its divisors is an integer number (13383043356).

Almost surely, 2^138025271792 is an apocalyptic number.

It is an amenable number.

138025271792 is a deficient number, since it is larger than the sum of its proper divisors (129635595328).

138025271792 is a wasteful number, since it uses less digits than its factorization.

138025271792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642040 (or 7642034 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 138025271792 in words is "one hundred thirty-eight billion, twenty-five million, two hundred seventy-one thousand, seven hundred ninety-two".