14405431361 has 2 divisors, whose sum is σ = 14405431362. Its totient is φ = 14405431360.

The previous prime is 14405431357. The next prime is 14405431363. The reversal of 14405431361 is 16313450441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10154391361 + 4251040000 = 100769^2 + 65200^2 .

It is a cyclic number.

It is not a de Polignac number, because 14405431361 - 2² = 14405431357 is a prime.

It is a Sophie Germain prime.

Together with 14405431363, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (14405431363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7202715680 + 7202715681.

It is an arithmetic number, because the mean of its divisors is an integer number (7202715681).

Almost surely, 2^14405431361 is an apocalyptic number.

It is an amenable number.

14405431361 is a deficient number, since it is larger than the sum of its proper divisors (1).

14405431361 is an equidigital number, since it uses as much as digits as its factorization.

14405431361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 14405431361 in words is "fourteen billion, four hundred five million, four hundred thirty-one thousand, three hundred sixty-one".