568639659997 has 2 divisors, whose sum is σ = 568639659998. Its totient is φ = 568639659996.

The previous prime is 568639659989. The next prime is 568639660033. The reversal of 568639659997 is 799956936865.

568639659997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342951955641 + 225687704356 = 585621^2 + 475066^2 .

It is a cyclic number.

It is not a de Polignac number, because 568639659997 - 2³ = 568639659989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 568639659997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (568639659197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284319829998 + 284319829999.

It is an arithmetic number, because the mean of its divisors is an integer number (284319829999).

Almost surely, 2^568639659997 is an apocalyptic number.

It is an amenable number.

568639659997 is a deficient number, since it is larger than the sum of its proper divisors (1).

568639659997 is an equidigital number, since it uses as much as digits as its factorization.

568639659997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5952139200, while the sum is 82.

The spelling of 568639659997 in words is "five hundred sixty-eight billion, six hundred thirty-nine million, six hundred fifty-nine thousand, nine hundred ninety-seven".