809401822023 has 16 divisors (see below), whose sum is σ = 1112812525440. Its totient is φ = 523041496224.

The previous prime is 809401822013. The next prime is 809401822027. The reversal of 809401822023 is 320228104908.

It is not a de Polignac number, because 809401822023 - 2⁶ = 809401821959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809401822027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30652933 + ... + 30679326.

It is an arithmetic number, because the mean of its divisors is an integer number (69550782840).

Almost surely, 2^809401822023 is an apocalyptic number.

809401822023 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

809401822023 is a deficient number, since it is larger than the sum of its proper divisors (303410703417).

809401822023 is a wasteful number, since it uses less digits than its factorization.

809401822023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61332398.

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 809401822023 in words is "eight hundred nine billion, four hundred one million, eight hundred twenty-two thousand, twenty-three".