6881881185 has 48 divisors (see below), whose sum is σ = 12118221648. Its totient is φ = 3612211200.

The previous prime is 6881881151. The next prime is 6881881199. The reversal of 6881881185 is 5811881886.

6881881185 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1128355281 + 5753525904 = 33591^2 + 75852^2 .

It is not a de Polignac number, because 6881881185 - 2¹² = 6881877089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1709475 + ... + 1713495.

It is an arithmetic number, because the mean of its divisors is an integer number (252462951).

Almost surely, 2^6881881185 is an apocalyptic number.

It is an amenable number.

6881881185 is a deficient number, since it is larger than the sum of its proper divisors (5236340463).

6881881185 is a wasteful number, since it uses less digits than its factorization.

6881881185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 4623 counting only the distinct ones).

The product of its digits is 983040, while the sum is 54.

The square root of 6881881185 is about 82957.1044878014. The cubic root of 6881881185 is about 1902.1104144654.

The spelling of 6881881185 in words is "six billion, eight hundred eighty-one million, eight hundred eighty-one thousand, one hundred eighty-five".