564776381788634 has 4 divisors (see below), whose sum is σ = 847164572682954. Its totient is φ = 282388190894316.

The previous prime is 564776381788603. The next prime is 564776381788639. The reversal of 564776381788634 is 436887183677465.

564776381788634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 463870238296609 + 100906143492025 = 21537647^2 + 10045205^2 .

It is a super-2 number, since 2×564776381788634² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (564776381788639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141194095447157 + ... + 141194095447160.

Almost surely, 2^{564776381788634} is an apocalyptic number.

564776381788634 is a deficient number, since it is larger than the sum of its proper divisors (282388190894320).

564776381788634 is a wasteful number, since it uses less digits than its factorization.

564776381788634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282388190894319.

The product of its digits is 27311800320, while the sum is 83.

The spelling of 564776381788634 in words is "five hundred sixty-four trillion, seven hundred seventy-six billion, three hundred eighty-one million, seven hundred eighty-eight thousand, six hundred thirty-four".