864564562 has 8 divisors (see below), whose sum is σ = 1365102000. Its totient is φ = 409530564.

The previous prime is 864564557. The next prime is 864564599. The reversal of 864564562 is 265465468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11375812 + ... + 11375887.

It is an arithmetic number, because the mean of its divisors is an integer number (170637750).

Almost surely, 2^864564562 is an apocalyptic number.

864564562 is a deficient number, since it is larger than the sum of its proper divisors (500537438).

864564562 is a wasteful number, since it uses less digits than its factorization.

864564562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22751720.

The product of its digits is 1382400, while the sum is 46.

The square root of 864564562 is about 29403.4787397682. The cubic root of 864564562 is about 952.6480365480.

The spelling of 864564562 in words is "eight hundred sixty-four million, five hundred sixty-four thousand, five hundred sixty-two".