6681406674 has 32 divisors (see below), whose sum is σ = 14158307520. Its totient is φ = 2094728192.

The previous prime is 6681406663. The next prime is 6681406729. The reversal of 6681406674 is 4766041866.

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 15 ways as a sum of consecutive naturals, for example, 137317 + ... + 179495.

It is an arithmetic number, because the mean of its divisors is an integer number (442447110).

Almost surely, 2^6681406674 is an apocalyptic number.

6681406674 is an abundant number, since it is smaller than the sum of its proper divisors (7476900846).

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

6681406674 is a wasteful number, since it uses less digits than its factorization.

6681406674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43754.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 6681406674 is about 81739.8719964743. The cubic root of 6681406674 is about 1883.4581245284.

The spelling of 6681406674 in words is "six billion, six hundred eighty-one million, four hundred six thousand, six hundred seventy-four".