564118869 has 4 divisors (see below), whose sum is σ = 752158496. Its totient is φ = 376079244.

The previous prime is 564118847. The next prime is 564118889. The reversal of 564118869 is 968811465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 564118869 - 2¹⁶ = 564053333 is a prime.

It is a super-2 number, since 2×564118869² = 636460196723678322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564118889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94019809 + ... + 94019814.

It is an arithmetic number, because the mean of its divisors is an integer number (188039624).

Almost surely, 2^564118869 is an apocalyptic number.

It is an amenable number.

564118869 is a deficient number, since it is larger than the sum of its proper divisors (188039627).

564118869 is a wasteful number, since it uses less digits than its factorization.

564118869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188039626.

The product of its digits is 414720, while the sum is 48.

The square root of 564118869 is about 23751.1866861427. The cubic root of 564118869 is about 826.2729630173.

The spelling of 564118869 in words is "five hundred sixty-four million, one hundred eighteen thousand, eight hundred sixty-nine".