6864788188 has 12 divisors (see below), whose sum is σ = 12080494440. Its totient is φ = 3413218352.

The previous prime is 6864788159. The next prime is 6864788201. The reversal of 6864788188 is 8818874686.

It is a super-2 number, since 2×6864788188² = 94250633732208646688, which contains 22 as substring.

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, 4793131 + ... + 4794562.

It is an arithmetic number, because the mean of its divisors is an integer number (1006707870).

Almost surely, 2^6864788188 is an apocalyptic number.

It is an amenable number.

6864788188 is a deficient number, since it is larger than the sum of its proper divisors (5215706252).

6864788188 is a wasteful number, since it uses less digits than its factorization.

6864788188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9587876 (or 9587874 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 64.

The square root of 6864788188 is about 82854.0173316901. The cubic root of 6864788188 is about 1900.5343084561.

It can be divided in two parts, 686 and 4788188, that added together give a palindrome (4788874).

The spelling of 6864788188 in words is "six billion, eight hundred sixty-four million, seven hundred eighty-eight thousand, one hundred eighty-eight".