6808644768 has 48 divisors (see below), whose sum is σ = 18288347616. Its totient is φ = 2216766720.

The previous prime is 6808644763. The next prime is 6808644797. The reversal of 6808644768 is 8674468086.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (6808644763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820563 + ... + 828818.

It is an arithmetic number, because the mean of its divisors is an integer number (381007242).

Almost surely, 2^6808644768 is an apocalyptic number.

It is an amenable number.

6808644768 is an abundant number, since it is smaller than the sum of its proper divisors (11479702848).

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

6808644768 is a wasteful number, since it uses less digits than its factorization.

6808644768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649437 (or 1649429 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The square root of 6808644768 is about 82514.5124690197. The cubic root of 6808644768 is about 1895.3389691202.

The spelling of 6808644768 in words is "six billion, eight hundred eight million, six hundred forty-four thousand, seven hundred sixty-eight".