13996722431 has 4 divisors (see below), whose sum is σ = 14007667200. Its totient is φ = 13985777664.

The previous prime is 13996722401. The next prime is 13996722461. The reversal of 13996722431 is 13422769931.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (13996722401) and next prime (13996722461).

It is a cyclic number.

It is not a de Polignac number, because 13996722431 - 2⁶ = 13996722367 is a prime.

It is a super-2 number, since 2×13996722431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13996722401) 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, 5470466 + ... + 5473023.

It is an arithmetic number, because the mean of its divisors is an integer number (3501916800).

Almost surely, 2^13996722431 is an apocalyptic number.

13996722431 is a deficient number, since it is larger than the sum of its proper divisors (10944769).

13996722431 is a wasteful number, since it uses less digits than its factorization.

13996722431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10944768.

The product of its digits is 489888, while the sum is 47.

The spelling of 13996722431 in words is "thirteen billion, nine hundred ninety-six million, seven hundred twenty-two thousand, four hundred thirty-one".