6687683704 has 64 divisors (see below), whose sum is σ = 13953139200. Its totient is φ = 2985365376.

The previous prime is 6687683693. The next prime is 6687683767. The reversal of 6687683704 is 4073867866.

It is a super-2 number, since 2×6687683704² = 89450226649494319232, 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453357 + ... + 467875.

It is an arithmetic number, because the mean of its divisors is an integer number (218017800).

Almost surely, 2^6687683704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6687683704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6976569600).

6687683704 is an abundant number, since it is smaller than the sum of its proper divisors (7265455496).

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

6687683704 is a wasteful number, since it uses less digits than its factorization.

6687683704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14684 (or 14680 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The square root of 6687683704 is about 81778.2593602970. The cubic root of 6687683704 is about 1884.0477619769.

The spelling of 6687683704 in words is "six billion, six hundred eighty-seven million, six hundred eighty-three thousand, seven hundred four".