18804414217 has 16 divisors (see below), whose sum is σ = 19652682240. Its totient is φ = 17971747200.

The previous prime is 18804414203. The next prime is 18804414241. The reversal of 18804414217 is 71241440881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18804414217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18804414217.

It is not an unprimeable number, because it can be changed into a prime (18804414617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592598 + ... + 2599840.

It is an arithmetic number, because the mean of its divisors is an integer number (1228292640).

Almost surely, 2^18804414217 is an apocalyptic number.

It is an amenable number.

18804414217 is a deficient number, since it is larger than the sum of its proper divisors (848268023).

18804414217 is an equidigital number, since it uses as much as digits as its factorization.

18804414217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8304.

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 18804414217 in words is "eighteen billion, eight hundred four million, four hundred fourteen thousand, two hundred seventeen".