568746743861 has 2 divisors, whose sum is σ = 568746743862. Its totient is φ = 568746743860.

The previous prime is 568746743839. The next prime is 568746743863. The reversal of 568746743861 is 168347647865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568553700625 + 193043236 = 754025^2 + 13894^2 .

It is a cyclic number.

It is not a de Polignac number, because 568746743861 - 2¹⁴ = 568746727477 is a prime.

Together with 568746743863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (568746743863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284373371930 + 284373371931.

It is an arithmetic number, because the mean of its divisors is an integer number (284373371931).

Almost surely, 2^568746743861 is an apocalyptic number.

It is an amenable number.

568746743861 is a deficient number, since it is larger than the sum of its proper divisors (1).

568746743861 is an equidigital number, since it uses as much as digits as its factorization.

568746743861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162570240, while the sum is 65.

The spelling of 568746743861 in words is "five hundred sixty-eight billion, seven hundred forty-six million, seven hundred forty-three thousand, eight hundred sixty-one".