804408844859 has 2 divisors, whose sum is σ = 804408844860. Its totient is φ = 804408844858.

The previous prime is 804408844829. The next prime is 804408844861. The reversal of 804408844859 is 958448804408.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804408844859 is a prime.

Together with 804408844861, 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 (804408844829) 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, 402204422429 + 402204422430.

It is an arithmetic number, because the mean of its divisors is an integer number (402204422430).

Almost surely, 2^804408844859 is an apocalyptic number.

804408844859 is a deficient number, since it is larger than the sum of its proper divisors (1).

804408844859 is an equidigital number, since it uses as much as digits as its factorization.

804408844859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47185920, while the sum is 62.

The spelling of 804408844859 in words is "eight hundred four billion, four hundred eight million, eight hundred forty-four thousand, eight hundred fifty-nine".