568682907809 has 2 divisors, whose sum is σ = 568682907810. Its totient is φ = 568682907808.

The previous prime is 568682907773. The next prime is 568682907811. The reversal of 568682907809 is 908709286865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 363492027409 + 205190880400 = 602903^2 + 452980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-568682907809 is a prime.

Together with 568682907811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (568682907109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284341453904 + 284341453905.

It is an arithmetic number, because the mean of its divisors is an integer number (284341453905).

Almost surely, 2^568682907809 is an apocalyptic number.

It is an amenable number.

568682907809 is a deficient number, since it is larger than the sum of its proper divisors (1).

568682907809 is an equidigital number, since it uses as much as digits as its factorization.

568682907809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 568682907809 in words is "five hundred sixty-eight billion, six hundred eighty-two million, nine hundred seven thousand, eight hundred nine".