808000080989 has 2 divisors, whose sum is σ = 808000080990. Its totient is φ = 808000080988.

The previous prime is 808000080949. The next prime is 808000081039. The reversal of 808000080989 is 989080000808.

It is an a-pointer prime, because the next prime (808000081039) can be obtained adding 808000080989 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 761313836089 + 46686244900 = 872533^2 + 216070^2 .

It is a cyclic number.

It is not a de Polignac number, because 808000080989 - 2³² = 803705113693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808000080949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404000040494 + 404000040495.

It is an arithmetic number, because the mean of its divisors is an integer number (404000040495).

Almost surely, 2^808000080989 is an apocalyptic number.

It is an amenable number.

808000080989 is a deficient number, since it is larger than the sum of its proper divisors (1).

808000080989 is an equidigital number, since it uses as much as digits as its factorization.

808000080989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 50.

The spelling of 808000080989 in words is "eight hundred eight billion, eighty thousand, nine hundred eighty-nine".