6881441886 has 64 divisors (see below), whose sum is σ = 17089228800. Its totient is φ = 2034417600.

The previous prime is 6881441881. The next prime is 6881441899.

It is a happy number.

6881441886 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881441881) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 116926 + ... + 165633.

It is an arithmetic number, because the mean of its divisors is an integer number (267019200).

Almost surely, 2^6881441886 is an apocalyptic number.

6881441886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6881441886 is an abundant number, since it is smaller than the sum of its proper divisors (10207786914).

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

6881441886 is a wasteful number, since it uses less digits than its factorization.

6881441886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282622 (or 282616 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 54.

The square root of 6881441886 is about 82954.4566976362. The cubic root of 6881441886 is about 1902.0699404070.

The spelling of 6881441886 in words is "six billion, eight hundred eighty-one million, four hundred forty-one thousand, eight hundred eighty-six".