13039748679 has 4 divisors (see below), whose sum is σ = 17386331576. Its totient is φ = 8693165784.

The previous prime is 13039748677. The next prime is 13039748713. The reversal of 13039748679 is 97684793031.

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

It is not a de Polignac number, because 13039748679 - 2¹ = 13039748677 is a prime.

It is a super-2 number, since 2×13039748679² (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 (13039748671) 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, 2173291444 + ... + 2173291449.

It is an arithmetic number, because the mean of its divisors is an integer number (4346582894).

Almost surely, 2^13039748679 is an apocalyptic number.

13039748679 is a deficient number, since it is larger than the sum of its proper divisors (4346582897).

13039748679 is an equidigital number, since it uses as much as digits as its factorization.

13039748679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346582896.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 13039748679 in words is "thirteen billion, thirty-nine million, seven hundred forty-eight thousand, six hundred seventy-nine".