564240605777 has 6 divisors (see below), whose sum is σ = 584368095558. Its totient is φ = 544784032352.

The previous prime is 564240605767. The next prime is 564240605801. The reversal of 564240605777 is 777506042465.

It can be written as a sum of positive squares in 3 ways, for example, as 54792978241 + 509447627536 = 234079^2 + 713756^2 .

It is a de Polignac number, because none of the positive numbers 2^k-564240605777 is a prime.

It is a super-2 number, since 2×564240605777² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564240605707) 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 in 5 ways as a sum of consecutive naturals, for example, 335457308 + ... + 335458989.

It is an arithmetic number, because the mean of its divisors is an integer number (97394682593).

Almost surely, 2^564240605777 is an apocalyptic number.

It is an amenable number.

564240605777 is a deficient number, since it is larger than the sum of its proper divisors (20127489781).

564240605777 is an equidigital number, since it uses as much as digits as its factorization.

564240605777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670916355 (or 670916326 counting only the distinct ones).

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 564240605777 in words is "five hundred sixty-four billion, two hundred forty million, six hundred five thousand, seven hundred seventy-seven".