13922319691 has 4 divisors (see below), whose sum is σ = 15911222512. Its totient is φ = 11933416872.

The previous prime is 13922319683. The next prime is 13922319709. The reversal of 13922319691 is 19691322931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13922319691 - 2³ = 13922319683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13922319641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 994451400 + ... + 994451413.

It is an arithmetic number, because the mean of its divisors is an integer number (3977805628).

Almost surely, 2^13922319691 is an apocalyptic number.

13922319691 is a deficient number, since it is larger than the sum of its proper divisors (1988902821).

13922319691 is an equidigital number, since it uses as much as digits as its factorization.

13922319691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988902820.

The product of its digits is 157464, while the sum is 46.

The spelling of 13922319691 in words is "thirteen billion, nine hundred twenty-two million, three hundred nineteen thousand, six hundred ninety-one".