14591322719 has 2 divisors, whose sum is σ = 14591322720. Its totient is φ = 14591322718.

The previous prime is 14591322667. The next prime is 14591322721. The reversal of 14591322719 is 91722319541.

It is a strong prime.

It is an emirp because it is prime and its reverse (91722319541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14591322719 - 2²⁸ = 14322887263 is a prime.

It is a super-2 number, since 2×14591322719² (a number of 21 digits) contains 22 as substring.

Together with 14591322721, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14591322719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14591322419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7295661359 + 7295661360.

It is an arithmetic number, because the mean of its divisors is an integer number (7295661360).

Almost surely, 2^14591322719 is an apocalyptic number.

14591322719 is a deficient number, since it is larger than the sum of its proper divisors (1).

14591322719 is an equidigital number, since it uses as much as digits as its factorization.

14591322719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 44.

The spelling of 14591322719 in words is "fourteen billion, five hundred ninety-one million, three hundred twenty-two thousand, seven hundred nineteen".