6985665896 has 24 divisors (see below), whose sum is σ = 14397113010. Its totient is φ = 3175302240.

The previous prime is 6985665779. The next prime is 6985665919.

6985665896 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 6151264900 + 834400996 = 78430^2 + 28886^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3607331 + ... + 3609266.

Almost surely, 2^6985665896 is an apocalyptic number.

It is an amenable number.

6985665896 is an abundant number, since it is smaller than the sum of its proper divisors (7411447114).

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

6985665896 is a wasteful number, since it uses less digits than its factorization.

6985665896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7216625 (or 7216610 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 68.

The square root of 6985665896 is about 83580.2960990209. The cubic root of 6985665896 is about 1911.6245688586.

The spelling of 6985665896 in words is "six billion, nine hundred eighty-five million, six hundred sixty-five thousand, eight hundred ninety-six".