13440743679 has 16 divisors (see below), whose sum is σ = 19825530624. Its totient is φ = 8031172800.

The previous prime is 13440743669. The next prime is 13440743683. The reversal of 13440743679 is 97634704431.

It is not a de Polignac number, because 13440743679 - 2⁵ = 13440743647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440743669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2865934 + ... + 2870619.

It is an arithmetic number, because the mean of its divisors is an integer number (1239095664).

Almost surely, 2^13440743679 is an apocalyptic number.

13440743679 is a deficient number, since it is larger than the sum of its proper divisors (6384786945).

13440743679 is a wasteful number, since it uses less digits than its factorization.

13440743679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736638.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 13440743679 in words is "thirteen billion, four hundred forty million, seven hundred forty-three thousand, six hundred seventy-nine".