2218888673 has 2 divisors, whose sum is σ = 2218888674. Its totient is φ = 2218888672.

The previous prime is 2218888649. The next prime is 2218888699. The reversal of 2218888673 is 3768888122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2172212449 + 46676224 = 46607^2 + 6832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218888673 - 2⁸ = 2218888417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2218887673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109444336 + 1109444337.

It is an arithmetic number, because the mean of its divisors is an integer number (1109444337).

Almost surely, 2^2218888673 is an apocalyptic number.

It is an amenable number.

2218888673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218888673 is an equidigital number, since it uses as much as digits as its factorization.

2218888673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 53.

The square root of 2218888673 is about 47105.0811802718. The cubic root of 2218888673 is about 1304.3030336372.

The spelling of 2218888673 in words is "two billion, two hundred eighteen million, eight hundred eighty-eight thousand, six hundred seventy-three".