564449646944464 has 10 divisors (see below), whose sum is σ = 1093621190954930. Its totient is φ = 282224823472224.

The previous prime is 564449646944453. The next prime is 564449646944507. The reversal of 564449646944464 is 464449646944465.

It can be written as a sum of positive squares in only one way, i.e., 500955714561600 + 63493932382864 = 22382040^2 + 7968308^2 .

It is a congruent number.

It is an unprimeable number.

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, 17639051466999 + ... + 17639051467030.

It is an arithmetic number, because the mean of its divisors is an integer number (109362119095493).

Almost surely, 2^{564449646944464} is an apocalyptic number.

It is an amenable number.

564449646944464 is a deficient number, since it is larger than the sum of its proper divisors (529171544010466).

564449646944464 is a wasteful number, since it uses less digits than its factorization.

564449646944464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35278102934037 (or 35278102934031 counting only the distinct ones).

The product of its digits is 34398535680, while the sum is 79.

Subtracting from 564449646944464 its reverse (464449646944465), we obtain a palindrome (99999999999999).

The spelling of 564449646944464 in words is "five hundred sixty-four trillion, four hundred forty-nine billion, six hundred forty-six million, nine hundred forty-four thousand, four hundred sixty-four".