808623398899 has 2 divisors, whose sum is σ = 808623398900. Its totient is φ = 808623398898.

The previous prime is 808623398881. The next prime is 808623398903. The reversal of 808623398899 is 998893326808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808623398899 - 2⁵ = 808623398867 is a prime.

It is a super-3 number, since 3×808623398899³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (808623398809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404311699449 + 404311699450.

It is an arithmetic number, because the mean of its divisors is an integer number (404311699450).

Almost surely, 2^808623398899 is an apocalyptic number.

808623398899 is a deficient number, since it is larger than the sum of its proper divisors (1).

808623398899 is an equidigital number, since it uses as much as digits as its factorization.

808623398899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322486272, while the sum is 73.

The spelling of 808623398899 in words is "eight hundred eight billion, six hundred twenty-three million, three hundred ninety-eight thousand, eight hundred ninety-nine".