138734213422 has 24 divisors (see below), whose sum is σ = 242938578240. Its totient is φ = 59245915680.

The previous prime is 138734213399. The next prime is 138734213447. The reversal of 138734213422 is 224312437831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2491422 + ... + 2546497.

It is an arithmetic number, because the mean of its divisors is an integer number (10122440760).

Almost surely, 2^138734213422 is an apocalyptic number.

138734213422 is a deficient number, since it is larger than the sum of its proper divisors (104204364818).

138734213422 is a wasteful number, since it uses less digits than its factorization.

138734213422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038216 (or 5038209 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The spelling of 138734213422 in words is "one hundred thirty-eight billion, seven hundred thirty-four million, two hundred thirteen thousand, four hundred twenty-two".