6681375186 has 8 divisors (see below), whose sum is σ = 13362750384. Its totient is φ = 2227125060.

The previous prime is 6681375157. The next prime is 6681375203. The reversal of 6681375186 is 6815731866.

It is a sphenic number, since it is the product of 3 distinct primes.

6681375186 is an admirable number.

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, 556781260 + ... + 556781271.

It is an arithmetic number, because the mean of its divisors is an integer number (1670343798).

Almost surely, 2^6681375186 is an apocalyptic number.

6681375186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6681375186 is a wasteful number, since it uses less digits than its factorization.

6681375186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113562536.

The product of its digits is 1451520, while the sum is 51.

The square root of 6681375186 is about 81739.6793852288. The cubic root of 6681375186 is about 1883.4551657491.

The spelling of 6681375186 in words is "six billion, six hundred eighty-one million, three hundred seventy-five thousand, one hundred eighty-six".