404795508779 has 2 divisors, whose sum is σ = 404795508780. Its totient is φ = 404795508778.

The previous prime is 404795508773. The next prime is 404795508781. The reversal of 404795508779 is 977805597404.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404795508779 is a prime.

Together with 404795508781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404795508773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202397754389 + 202397754390.

It is an arithmetic number, because the mean of its divisors is an integer number (202397754390).

Almost surely, 2^404795508779 is an apocalyptic number.

404795508779 is a deficient number, since it is larger than the sum of its proper divisors (1).

404795508779 is an equidigital number, since it uses as much as digits as its factorization.

404795508779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88905600, while the sum is 65.

The spelling of 404795508779 in words is "four hundred four billion, seven hundred ninety-five million, five hundred eight thousand, seven hundred seventy-nine".