13998775079 has 2 divisors, whose sum is σ = 13998775080. Its totient is φ = 13998775078.

The previous prime is 13998775057. The next prime is 13998775123. The reversal of 13998775079 is 97057789931.

It is a weak prime.

It is an emirp because it is prime and its reverse (97057789931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13998775079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13998775979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6999387539 + 6999387540.

It is an arithmetic number, because the mean of its divisors is an integer number (6999387540).

Almost surely, 2^13998775079 is an apocalyptic number.

13998775079 is a deficient number, since it is larger than the sum of its proper divisors (1).

13998775079 is an equidigital number, since it uses as much as digits as its factorization.

13998775079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30005640, while the sum is 65.

The spelling of 13998775079 in words is "thirteen billion, nine hundred ninety-eight million, seven hundred seventy-five thousand, seventy-nine".