808474288417 has 2 divisors, whose sum is σ = 808474288418. Its totient is φ = 808474288416.

The previous prime is 808474288379. The next prime is 808474288429. The reversal of 808474288417 is 714882474808.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 780918620416 + 27555668001 = 883696^2 + 165999^2 .

It is a cyclic number.

It is not a de Polignac number, because 808474288417 - 2³¹ = 806326804769 is a prime.

It is not a weakly prime, because it can be changed into another prime (808474238417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404237144208 + 404237144209.

It is an arithmetic number, because the mean of its divisors is an integer number (404237144209).

Almost surely, 2^808474288417 is an apocalyptic number.

It is an amenable number.

808474288417 is a deficient number, since it is larger than the sum of its proper divisors (1).

808474288417 is an equidigital number, since it uses as much as digits as its factorization.

808474288417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25690112, while the sum is 61.

The spelling of 808474288417 in words is "eight hundred eight billion, four hundred seventy-four million, two hundred eighty-eight thousand, four hundred seventeen".