13959431739 has 12 divisors (see below), whose sum is σ = 21996680472. Its totient is φ = 8460261600.

The previous prime is 13959431671. The next prime is 13959431741. The reversal of 13959431739 is 93713495931.

It is a happy number.

13959431739 is a `hidden beast` number, since 1 + 3 + 9 + 594 + 3 + 17 + 39 = 666.

It is not a de Polignac number, because 13959431739 - 2⁷ = 13959431611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13959431779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70502082 + ... + 70502279.

It is an arithmetic number, because the mean of its divisors is an integer number (1833056706).

Almost surely, 2^13959431739 is an apocalyptic number.

13959431739 is a deficient number, since it is larger than the sum of its proper divisors (8037248733).

13959431739 is a wasteful number, since it uses less digits than its factorization.

13959431739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141004378 (or 141004375 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The spelling of 13959431739 in words is "thirteen billion, nine hundred fifty-nine million, four hundred thirty-one thousand, seven hundred thirty-nine".