2144668688 has 20 divisors (see below), whose sum is σ = 4251931728. Its totient is φ = 1047396000.

The previous prime is 2144668667. The next prime is 2144668733. The reversal of 2144668688 is 8868664412.

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, 1557938 + ... + 1559313.

Almost surely, 2^2144668688 is an apocalyptic number.

It is an amenable number.

2144668688 is a deficient number, since it is larger than the sum of its proper divisors (2107263040).

2144668688 is a wasteful number, since it uses less digits than its factorization.

2144668688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117302 (or 3117296 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 53.

The square root of 2144668688 is about 46310.5677788558. The cubic root of 2144668688 is about 1289.5951873639.

The spelling of 2144668688 in words is "two billion, one hundred forty-four million, six hundred sixty-eight thousand, six hundred eighty-eight".