13639816079 has 2 divisors, whose sum is σ = 13639816080. Its totient is φ = 13639816078.

The previous prime is 13639816067. The next prime is 13639816171. The reversal of 13639816079 is 97061893631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13639816079 - 2⁸ = 13639815823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13639816079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13639816019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6819908039 + 6819908040.

It is an arithmetic number, because the mean of its divisors is an integer number (6819908040).

Almost surely, 2^13639816079 is an apocalyptic number.

13639816079 is a deficient number, since it is larger than the sum of its proper divisors (1).

13639816079 is an equidigital number, since it uses as much as digits as its factorization.

13639816079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 13639816079 in words is "thirteen billion, six hundred thirty-nine million, eight hundred sixteen thousand, seventy-nine".