6681725004 has 12 divisors (see below), whose sum is σ = 15590691704. Its totient is φ = 2227241664.

The previous prime is 6681724991. The next prime is 6681725021. The reversal of 6681725004 is 4005271866.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278405197 + ... + 278405220.

Almost surely, 2^6681725004 is an apocalyptic number.

It is an amenable number.

6681725004 is an abundant number, since it is smaller than the sum of its proper divisors (8908966700).

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

6681725004 is a wasteful number, since it uses less digits than its factorization.

6681725004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556810424 (or 556810422 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 6681725004 is about 81741.8191869988. The cubic root of 6681725004 is about 1883.4880359793.

The spelling of 6681725004 in words is "six billion, six hundred eighty-one million, seven hundred twenty-five thousand, four".