13692442431 has 4 divisors (see below), whose sum is σ = 18256589912. Its totient is φ = 9128294952.

The previous prime is 13692442411. The next prime is 13692442433. The reversal of 13692442431 is 13424429631.

It is a happy number.

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

It is not a de Polignac number, because 13692442431 - 2¹⁴ = 13692426047 is a prime.

It is a super-2 number, since 2×13692442431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13692442431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13692442433) 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, 2282073736 + ... + 2282073741.

It is an arithmetic number, because the mean of its divisors is an integer number (4564147478).

Almost surely, 2^13692442431 is an apocalyptic number.

13692442431 is a deficient number, since it is larger than the sum of its proper divisors (4564147481).

13692442431 is an equidigital number, since it uses as much as digits as its factorization.

13692442431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564147480.

The product of its digits is 124416, while the sum is 39.

The spelling of 13692442431 in words is "thirteen billion, six hundred ninety-two million, four hundred forty-two thousand, four hundred thirty-one".