2218046417 has 2 divisors, whose sum is σ = 2218046418. Its totient is φ = 2218046416.

The previous prime is 2218046407. The next prime is 2218046447. The reversal of 2218046417 is 7146408122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121178256 + 1096868161 = 33484^2 + 33119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218046417 - 2⁴ = 2218046401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2218046407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109023208 + 1109023209.

It is an arithmetic number, because the mean of its divisors is an integer number (1109023209).

Almost surely, 2^2218046417 is an apocalyptic number.

It is an amenable number.

2218046417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218046417 is an equidigital number, since it uses as much as digits as its factorization.

2218046417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2218046417 is about 47096.1401496980. The cubic root of 2218046417 is about 1304.1379816306.

The spelling of 2218046417 in words is "two billion, two hundred eighteen million, forty-six thousand, four hundred seventeen".