568240809761 has 2 divisors, whose sum is σ = 568240809762. Its totient is φ = 568240809760.

The previous prime is 568240809757. The next prime is 568240809791. The reversal of 568240809761 is 167908042865.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298464449761 + 269776360000 = 546319^2 + 519400^2 .

It is a cyclic number.

It is not a de Polignac number, because 568240809761 - 2² = 568240809757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 568240809697 and 568240809706.

It is not a weakly prime, because it can be changed into another prime (568240809701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284120404880 + 284120404881.

It is an arithmetic number, because the mean of its divisors is an integer number (284120404881).

Almost surely, 2^568240809761 is an apocalyptic number.

It is an amenable number.

568240809761 is a deficient number, since it is larger than the sum of its proper divisors (1).

568240809761 is an equidigital number, since it uses as much as digits as its factorization.

568240809761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 568240809761 in words is "five hundred sixty-eight billion, two hundred forty million, eight hundred nine thousand, seven hundred sixty-one".