9689889868 has 12 divisors (see below), whose sum is σ = 17351663560. Its totient is φ = 4732271712.

The previous prime is 9689889829. The next prime is 9689889893. The reversal of 9689889868 is 8689889869.

It is a happy number.

9689889868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 28168113 + ... + 28168456.

Almost surely, 2^9689889868 is an apocalyptic number.

It is an amenable number.

9689889868 is a deficient number, since it is larger than the sum of its proper divisors (7661773692).

9689889868 is a wasteful number, since it uses less digits than its factorization.

9689889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56336616 (or 56336614 counting only the distinct ones).

The product of its digits is 859963392, while the sum is 79.

The square root of 9689889868 is about 98437.2382180646. The cubic root of 9689889868 is about 2131.9300299002.

Subtracting from 9689889868 its reverse (8689889869), we obtain a palindrome (999999999).

The spelling of 9689889868 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred sixty-eight".