809444435795 has 4 divisors (see below), whose sum is σ = 971333322960. Its totient is φ = 647555548632.

The previous prime is 809444435747. The next prime is 809444435867. The reversal of 809444435795 is 597534444908.

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

It is a cyclic number.

It is not a de Polignac number, because 809444435795 - 2⁶ = 809444435731 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80944443575 + ... + 80944443584.

It is an arithmetic number, because the mean of its divisors is an integer number (242833330740).

Almost surely, 2^809444435795 is an apocalyptic number.

809444435795 is a deficient number, since it is larger than the sum of its proper divisors (161888887165).

809444435795 is a wasteful number, since it uses less digits than its factorization.

809444435795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161888887164.

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 809444435795 in words is "eight hundred nine billion, four hundred forty-four million, four hundred thirty-five thousand, seven hundred ninety-five".