808809688807 has 2 divisors, whose sum is σ = 808809688808. Its totient is φ = 808809688806.

The previous prime is 808809688769. The next prime is 808809688831. The reversal of 808809688807 is 708886908808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-808809688807 is a prime.

It is a super-2 number, since 2×808809688807² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808809688837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404404844403 + 404404844404.

It is an arithmetic number, because the mean of its divisors is an integer number (404404844404).

Almost surely, 2^808809688807 is an apocalyptic number.

808809688807 is a deficient number, since it is larger than the sum of its proper divisors (1).

808809688807 is an equidigital number, since it uses as much as digits as its factorization.

808809688807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99090432, while the sum is 70.

The spelling of 808809688807 in words is "eight hundred eight billion, eight hundred nine million, six hundred eighty-eight thousand, eight hundred seven".