2218713764 has 12 divisors (see below), whose sum is σ = 3887856588. Its totient is φ = 1107897600.

The previous prime is 2218713727. The next prime is 2218713779. The reversal of 2218713764 is 4673178122.

It can be written as a sum of positive squares in 2 ways, for example, as 120340900 + 2098372864 = 10970^2 + 45808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361397 + ... + 367484.

It is an arithmetic number, because the mean of its divisors is an integer number (323988049).

Almost surely, 2^2218713764 is an apocalyptic number.

It is an amenable number.

2218713764 is a deficient number, since it is larger than the sum of its proper divisors (1669142824).

2218713764 is a wasteful number, since it uses less digits than its factorization.

2218713764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729646 (or 729644 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 2218713764 is about 47103.2245605330. The cubic root of 2218713764 is about 1304.2687611751.

The spelling of 2218713764 in words is "two billion, two hundred eighteen million, seven hundred thirteen thousand, seven hundred sixty-four".