6688851888 has 40 divisors (see below), whose sum is σ = 17324002800. Its totient is φ = 2223879424.

The previous prime is 6688851839. The next prime is 6688851899. The reversal of 6688851888 is 8881588866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160443 + ... + 197786.

It is an arithmetic number, because the mean of its divisors is an integer number (433100070).

Almost surely, 2^6688851888 is an apocalyptic number.

It is an amenable number.

6688851888 is an abundant number, since it is smaller than the sum of its proper divisors (10635150912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6688851888 is a wasteful number, since it uses less digits than its factorization.

6688851888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358629 (or 358623 counting only the distinct ones).

The product of its digits is 47185920, while the sum is 66.

The square root of 6688851888 is about 81785.4014357086. The cubic root of 6688851888 is about 1884.1574554777.

The spelling of 6688851888 in words is "six billion, six hundred eighty-eight million, eight hundred fifty-one thousand, eight hundred eighty-eight".