6698444844 has 72 divisors (see below), whose sum is σ = 19580091888. Its totient is φ = 1766620800.

The previous prime is 6698444843. The next prime is 6698444861. The reversal of 6698444844 is 4484448966.

It is a super-2 number, since 2×6698444844² = 89738326656220368672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6698444843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 430507 + ... + 445794.

Almost surely, 2^6698444844 is an apocalyptic number.

It is an amenable number.

6698444844 is an abundant number, since it is smaller than the sum of its proper divisors (12881647044).

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

6698444844 is a wasteful number, since it uses less digits than its factorization.

6698444844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876335 (or 876326 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 57.

The square root of 6698444844 is about 81844.0275401938. The cubic root of 6698444844 is about 1885.0577597472.

The spelling of 6698444844 in words is "six billion, six hundred ninety-eight million, four hundred forty-four thousand, eight hundred forty-four".