2218408807 has 2 divisors, whose sum is σ = 2218408808. Its totient is φ = 2218408806.

The previous prime is 2218408781. The next prime is 2218408813. The reversal of 2218408807 is 7088048122.

2218408807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2218408807 - 2²⁷ = 2084191079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2218408807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2218408847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109204403 + 1109204404.

It is an arithmetic number, because the mean of its divisors is an integer number (1109204404).

Almost surely, 2^2218408807 is an apocalyptic number.

2218408807 is a deficient number, since it is larger than the sum of its proper divisors (1).

2218408807 is an equidigital number, since it uses as much as digits as its factorization.

2218408807 is an evil number, because the sum of its binary digits is even.

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

The square root of 2218408807 is about 47099.9873354548. The cubic root of 2218408807 is about 1304.2090022103.

The spelling of 2218408807 in words is "two billion, two hundred eighteen million, four hundred eight thousand, eight hundred seven".