808791368779 has 2 divisors, whose sum is σ = 808791368780. Its totient is φ = 808791368778.

The previous prime is 808791368753. The next prime is 808791368821. The reversal of 808791368779 is 977863197808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808791368779 - 2¹¹ = 808791366731 is a prime.

It is a super-2 number, since 2×808791368779² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (808791368279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404395684389 + 404395684390.

It is an arithmetic number, because the mean of its divisors is an integer number (404395684390).

Almost surely, 2^808791368779 is an apocalyptic number.

808791368779 is a deficient number, since it is larger than the sum of its proper divisors (1).

808791368779 is an equidigital number, since it uses as much as digits as its factorization.

808791368779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256048128, while the sum is 73.

The spelling of 808791368779 in words is "eight hundred eight billion, seven hundred ninety-one million, three hundred sixty-eight thousand, seven hundred seventy-nine".