13392539939 has 4 divisors (see below), whose sum is σ = 14180336424. Its totient is φ = 12604743456.

The previous prime is 13392539917. The next prime is 13392539947. The reversal of 13392539939 is 93993529331.

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 13392539939 - 2¹² = 13392535843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13392539539) 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, 393898217 + ... + 393898250.

It is an arithmetic number, because the mean of its divisors is an integer number (3545084106).

Almost surely, 2^13392539939 is an apocalyptic number.

13392539939 is a deficient number, since it is larger than the sum of its proper divisors (787796485).

13392539939 is an equidigital number, since it uses as much as digits as its factorization.

13392539939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787796484.

The product of its digits is 5314410, while the sum is 56.

The spelling of 13392539939 in words is "thirteen billion, three hundred ninety-two million, five hundred thirty-nine thousand, nine hundred thirty-nine".