6688988264 has 16 divisors (see below), whose sum is σ = 14333546400. Its totient is φ = 2866709232.

The previous prime is 6688988237. The next prime is 6688988291. The reversal of 6688988264 is 4628898866.

It is an interprime number because it is at equal distance from previous prime (6688988237) and next prime (6688988291).

It is a self number, because there is not a number n which added to its sum of digits gives 6688988264.

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, 59723054 + ... + 59723165.

It is an arithmetic number, because the mean of its divisors is an integer number (895846650).

Almost surely, 2^6688988264 is an apocalyptic number.

It is an amenable number.

6688988264 is an abundant number, since it is smaller than the sum of its proper divisors (7644558136).

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

6688988264 is a wasteful number, since it uses less digits than its factorization.

6688988264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119446232 (or 119446228 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 65.

The square root of 6688988264 is about 81786.2351743862. The cubic root of 6688988264 is about 1884.1702604710.

The spelling of 6688988264 in words is "six billion, six hundred eighty-eight million, nine hundred eighty-eight thousand, two hundred sixty-four".