565628838889 has 3 divisors (see below), whose sum is σ = 565629590973. Its totient is φ = 565628086806.

The previous prime is 565628838869. The next prime is 565628838893. The reversal of 565628838889 is 988838826565.

It is a happy number.

The square root of 565628838889 is 752083.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 565628838889 - 2⁹ = 565628838377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (565628838869) 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 2 ways as a sum of consecutive naturals, for example, 376042 + ... + 1128124.

It is an arithmetic number, because the mean of its divisors is an integer number (188543196991).

Almost surely, 2^565628838889 is an apocalyptic number.

565628838889 is the 752083-rd square number.

565628838889 is the 376042-nd centered octagonal number.

It is an amenable number.

565628838889 is a deficient number, since it is larger than the sum of its proper divisors (752084).

565628838889 is an frugal number, since it uses more digits than its factorization.

565628838889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504166 (or 752083 counting only the distinct ones).

The product of its digits is 1592524800, while the sum is 76.

The spelling of 565628838889 in words is "five hundred sixty-five billion, six hundred twenty-eight million, eight hundred thirty-eight thousand, eight hundred eighty-nine".