2168852218 has 16 divisors (see below), whose sum is σ = 3515500296. Its totient is φ = 997588800.

The previous prime is 2168852207. The next prime is 2168852221. The reversal of 2168852218 is 8122588612.

It can be written as a sum of positive squares in 4 ways, for example, as 1844960209 + 323892009 = 42953^2 + 17997^2 .

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, 134733 + ... + 149968.

Almost surely, 2^2168852218 is an apocalyptic number.

2168852218 is a deficient number, since it is larger than the sum of its proper divisors (1346648078).

2168852218 is a wasteful number, since it uses less digits than its factorization.

2168852218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285009.

The product of its digits is 122880, while the sum is 43.

The square root of 2168852218 is about 46570.9374825116. The cubic root of 2168852218 is about 1294.4242891499.

The spelling of 2168852218 in words is "two billion, one hundred sixty-eight million, eight hundred fifty-two thousand, two hundred eighteen".