13891612422 has 64 divisors (see below), whose sum is σ = 29909088000. Its totient is φ = 4292738688.

The previous prime is 13891612421. The next prime is 13891612459. The reversal of 13891612422 is 22421619831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891612421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425704 + ... + 457172.

It is an arithmetic number, because the mean of its divisors is an integer number (467329500).

Almost surely, 2^13891612422 is an apocalyptic number.

13891612422 is an abundant number, since it is smaller than the sum of its proper divisors (16017475578).

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

13891612422 is a wasteful number, since it uses less digits than its factorization.

13891612422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31605.

The product of its digits is 41472, while the sum is 39.

The spelling of 13891612422 in words is "thirteen billion, eight hundred ninety-one million, six hundred twelve thousand, four hundred twenty-two".