14398163657 has 2 divisors, whose sum is σ = 14398163658. Its totient is φ = 14398163656.

The previous prime is 14398163603. The next prime is 14398163701. The reversal of 14398163657 is 75636189341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11418204736 + 2979958921 = 106856^2 + 54589^2 .

It is a cyclic number.

It is not a de Polignac number, because 14398163657 - 2⁸ = 14398163401 is a prime.

It is a super-2 number, since 2×14398163657² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14398163599 and 14398163608.

It is not a weakly prime, because it can be changed into another prime (14398163257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7199081828 + 7199081829.

It is an arithmetic number, because the mean of its divisors is an integer number (7199081829).

Almost surely, 2^14398163657 is an apocalyptic number.

It is an amenable number.

14398163657 is a deficient number, since it is larger than the sum of its proper divisors (1).

14398163657 is an equidigital number, since it uses as much as digits as its factorization.

14398163657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3265920, while the sum is 53.

The spelling of 14398163657 in words is "fourteen billion, three hundred ninety-eight million, one hundred sixty-three thousand, six hundred fifty-seven".