2218762988 has 24 divisors (see below), whose sum is σ = 4363322208. Its totient is φ = 979520256.

The previous prime is 2218762961. The next prime is 2218762991. The reversal of 2218762988 is 8892678122.

2218762988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926381 + ... + 928772.

It is an arithmetic number, because the mean of its divisors is an integer number (181805092).

Almost surely, 2^2218762988 is an apocalyptic number.

It is an amenable number.

2218762988 is a deficient number, since it is larger than the sum of its proper divisors (2144559220).

2218762988 is a wasteful number, since it uses less digits than its factorization.

2218762988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855193 (or 1855191 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 53.

The square root of 2218762988 is about 47103.7470696334. The cubic root of 2218762988 is about 1304.2784065308.

The spelling of 2218762988 in words is "two billion, two hundred eighteen million, seven hundred sixty-two thousand, nine hundred eighty-eight".