2118968228 has 24 divisors (see below), whose sum is σ = 3999952320. Its totient is φ = 976390560.

The previous prime is 2118968227. The next prime is 2118968231. The reversal of 2118968228 is 8228698112.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2118968227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728 + ... + 65103.

It is an arithmetic number, because the mean of its divisors is an integer number (166664680).

Almost surely, 2^2118968228 is an apocalyptic number.

It is an amenable number.

2118968228 is a deficient number, since it is larger than the sum of its proper divisors (1880984092).

2118968228 is a wasteful number, since it uses less digits than its factorization.

2118968228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66467 (or 66465 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 2118968228 is about 46032.2520413677. The cubic root of 2118968228 is about 1284.4232202820.

The spelling of 2118968228 in words is "two billion, one hundred eighteen million, nine hundred sixty-eight thousand, two hundred twenty-eight".