14405621317 has 2 divisors, whose sum is σ = 14405621318. Its totient is φ = 14405621316.

The previous prime is 14405621311. The next prime is 14405621359. The reversal of 14405621317 is 71312650441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13511970081 + 893651236 = 116241^2 + 29894^2 .

It is an emirp because it is prime and its reverse (71312650441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14405621317 - 2³ = 14405621309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14405621311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7202810658 + 7202810659.

It is an arithmetic number, because the mean of its divisors is an integer number (7202810659).

Almost surely, 2^14405621317 is an apocalyptic number.

It is an amenable number.

14405621317 is a deficient number, since it is larger than the sum of its proper divisors (1).

14405621317 is an equidigital number, since it uses as much as digits as its factorization.

14405621317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 14405621317 in words is "fourteen billion, four hundred five million, six hundred twenty-one thousand, three hundred seventeen".