564778183745768 has 16 divisors (see below), whose sum is σ = 1066066202542500. Its totient is φ = 280493863067776.

The previous prime is 564778183745761. The next prime is 564778183745771. The reversal of 564778183745768 is 867547381877465.

It can be written as a sum of positive squares in 2 ways, for example, as 436058675752324 + 128719507993444 = 20882018^2 + 11345462^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 564778183745768.

It is not an unprimeable number, because it can be changed into a prime (564778183745761) 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 3 ways as a sum of consecutive naturals, for example, 236903599373 + ... + 236903601756.

Almost surely, 2^{564778183745768} is an apocalyptic number.

It is an amenable number.

564778183745768 is a deficient number, since it is larger than the sum of its proper divisors (501288018796732).

564778183745768 is a wasteful number, since it uses less digits than its factorization.

564778183745768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473807201284 (or 473807201280 counting only the distinct ones).

The product of its digits is 53106278400, while the sum is 86.

The spelling of 564778183745768 in words is "five hundred sixty-four trillion, seven hundred seventy-eight billion, one hundred eighty-three million, seven hundred forty-five thousand, seven hundred sixty-eight".