809508080023 has 2 divisors, whose sum is σ = 809508080024. Its totient is φ = 809508080022.

The previous prime is 809508080021. The next prime is 809508080039. The reversal of 809508080023 is 320080805908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 809508080023 - 2¹ = 809508080021 is a prime.

Together with 809508080021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809508080021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404754040011 + 404754040012.

It is an arithmetic number, because the mean of its divisors is an integer number (404754040012).

Almost surely, 2^809508080023 is an apocalyptic number.

809508080023 is a deficient number, since it is larger than the sum of its proper divisors (1).

809508080023 is an equidigital number, since it uses as much as digits as its factorization.

809508080023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 809508080023 in words is "eight hundred nine billion, five hundred eight million, eighty thousand, twenty-three".