14656863257 has 2 divisors, whose sum is σ = 14656863258. Its totient is φ = 14656863256.

The previous prime is 14656863239. The next prime is 14656863289. The reversal of 14656863257 is 75236865641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9932912896 + 4723950361 = 99664^2 + 68731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14656863257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14656863199 and 14656863208.

It is not a weakly prime, because it can be changed into another prime (14656865257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7328431628 + 7328431629.

It is an arithmetic number, because the mean of its divisors is an integer number (7328431629).

Almost surely, 2^14656863257 is an apocalyptic number.

It is an amenable number.

14656863257 is a deficient number, since it is larger than the sum of its proper divisors (1).

14656863257 is an equidigital number, since it uses as much as digits as its factorization.

14656863257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 53.

The spelling of 14656863257 in words is "fourteen billion, six hundred fifty-six million, eight hundred sixty-three thousand, two hundred fifty-seven".