13697946517 has 2 divisors, whose sum is σ = 13697946518. Its totient is φ = 13697946516.

The previous prime is 13697946499. The next prime is 13697946551. The reversal of 13697946517 is 71564979631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7014230001 + 6683716516 = 83751^2 + 81754^2 .

It is a cyclic number.

It is not a de Polignac number, because 13697946517 - 2⁷ = 13697946389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13697946617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6848973258 + 6848973259.

It is an arithmetic number, because the mean of its divisors is an integer number (6848973259).

Almost surely, 2^13697946517 is an apocalyptic number.

It is an amenable number.

13697946517 is a deficient number, since it is larger than the sum of its proper divisors (1).

13697946517 is an equidigital number, since it uses as much as digits as its factorization.

13697946517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 58.

The spelling of 13697946517 in words is "thirteen billion, six hundred ninety-seven million, nine hundred forty-six thousand, five hundred seventeen".