6681811850 has 24 divisors (see below), whose sum is σ = 14203623648. Its totient is φ = 2290906800.

The previous prime is 6681811849. The next prime is 6681811879. The reversal of 6681811850 is 581181866.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9545096 + ... + 9545795.

It is an arithmetic number, because the mean of its divisors is an integer number (591817652).

Almost surely, 2^6681811850 is an apocalyptic number.

6681811850 is an abundant number, since it is smaller than the sum of its proper divisors (7521811798).

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

6681811850 is a wasteful number, since it uses less digits than its factorization.

6681811850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19090910 (or 19090905 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 6681811850 is about 81742.3504066283. The cubic root of 6681811850 is about 1883.4961961821.

The spelling of 6681811850 in words is "six billion, six hundred eighty-one million, eight hundred eleven thousand, eight hundred fifty".