63613696717 has 2 divisors, whose sum is σ = 63613696718. Its totient is φ = 63613696716.

The previous prime is 63613696711. The next prime is 63613696747. The reversal of 63613696717 is 71769631636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44617690441 + 18996006276 = 211229^2 + 137826^2 .

It is a cyclic number.

It is not a de Polignac number, because 63613696717 - 2²⁷ = 63479478989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63613696711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31806848358 + 31806848359.

It is an arithmetic number, because the mean of its divisors is an integer number (31806848359).

Almost surely, 2^63613696717 is an apocalyptic number.

It is an amenable number.

63613696717 is a deficient number, since it is larger than the sum of its proper divisors (1).

63613696717 is an equidigital number, since it uses as much as digits as its factorization.

63613696717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5143824, while the sum is 55.

The spelling of 63613696717 in words is "sixty-three billion, six hundred thirteen million, six hundred ninety-six thousand, seven hundred seventeen".