564755889809 has 2 divisors, whose sum is σ = 564755889810. Its totient is φ = 564755889808.

The previous prime is 564755889727. The next prime is 564755889811. The reversal of 564755889809 is 908988557465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389276166400 + 175479723409 = 623920^2 + 418903^2 .

It is a cyclic number.

It is not a de Polignac number, because 564755889809 - 2²⁸ = 564487454353 is a prime.

Together with 564755889811, 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 (564755889209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282377944904 + 282377944905.

It is an arithmetic number, because the mean of its divisors is an integer number (282377944905).

Almost surely, 2^564755889809 is an apocalyptic number.

It is an amenable number.

564755889809 is a deficient number, since it is larger than the sum of its proper divisors (1).

564755889809 is an equidigital number, since it uses as much as digits as its factorization.

564755889809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912000, while the sum is 74.

The spelling of 564755889809 in words is "five hundred sixty-four billion, seven hundred fifty-five million, eight hundred eighty-nine thousand, eight hundred nine".