9689889870 has 112 divisors (see below), whose sum is σ = 26203407120. Its totient is φ = 2578770432.

The previous prime is 9689889829. The next prime is 9689889893. The reversal of 9689889870 is 789889869.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 4803102 + ... + 4805118.

Almost surely, 2^9689889870 is an apocalyptic number.

9689889870 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9689889870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13101703560).

9689889870 is an abundant number, since it is smaller than the sum of its proper divisors (16513517250).

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

9689889870 is a wasteful number, since it uses less digits than its factorization.

9689889870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701 (or 2686 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 72.

The square root of 9689889870 is about 98437.2382282234. The cubic root of 9689889870 is about 2131.9300300468.

The spelling of 9689889870 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred seventy".