809895603364 has 9 divisors (see below), whose sum is σ = 1417320455691. Its totient is φ = 404946901740.

The previous prime is 809895603317. The next prime is 809895603373. The reversal of 809895603364 is 463306598908.

The square root of 809895603364 is 899942.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1574899 + ... + 2024869.

Almost surely, 2^809895603364 is an apocalyptic number.

809895603364 is the 899942-nd square number.

It is an amenable number.

809895603364 is a deficient number, since it is larger than the sum of its proper divisors (607424852327).

809895603364 is an frugal number, since it uses more digits than its factorization.

809895603364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899946 (or 449973 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 809895603364 in words is "eight hundred nine billion, eight hundred ninety-five million, six hundred three thousand, three hundred sixty-four".