804417809117 has 12 divisors (see below), whose sum is σ = 874794451284. Its totient is φ = 739352615040.

The previous prime is 804417809093. The next prime is 804417809123. The reversal of 804417809117 is 711908714408.

It can be written as a sum of positive squares in 6 ways, for example, as 353336325241 + 451081483876 = 594421^2 + 671626^2 .

It is not a de Polignac number, because 804417809117 - 2⁶ = 804417809053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804417809177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10174934 + ... + 10253687.

It is an arithmetic number, because the mean of its divisors is an integer number (72899537607).

Almost surely, 2^804417809117 is an apocalyptic number.

It is an amenable number.

804417809117 is a deficient number, since it is larger than the sum of its proper divisors (70376642167).

804417809117 is a wasteful number, since it uses less digits than its factorization.

804417809117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20428880 (or 20428867 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 50.

The spelling of 804417809117 in words is "eight hundred four billion, four hundred seventeen million, eight hundred nine thousand, one hundred seventeen".