2812868668 has 12 divisors (see below), whose sum is σ = 4923049432. Its totient is φ = 1406283120.

The previous prime is 2812868647. The next prime is 2812868683. The reversal of 2812868668 is 8668682182.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11071 + ... + 75817.

Almost surely, 2^2812868668 is an apocalyptic number.

It is an amenable number.

2812868668 is a deficient number, since it is larger than the sum of its proper divisors (2110180764).

2812868668 is a wasteful number, since it uses less digits than its factorization.

2812868668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75612 (or 75610 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 55.

The square root of 2812868668 is about 53036.4843103311. The cubic root of 2812868668 is about 1411.6157170483.

The spelling of 2812868668 in words is "two billion, eight hundred twelve million, eight hundred sixty-eight thousand, six hundred sixty-eight".