9989309694 has 32 divisors (see below), whose sum is σ = 24589071360. Its totient is φ = 2634543072.

The previous prime is 9989309677. The next prime is 9989309783. The reversal of 9989309694 is 4969039899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9147174 + ... + 9148265.

It is an arithmetic number, because the mean of its divisors is an integer number (768408480).

Almost surely, 2^9989309694 is an apocalyptic number.

9989309694 is an abundant number, since it is smaller than the sum of its proper divisors (14599761666).

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

9989309694 is a wasteful number, since it uses less digits than its factorization.

9989309694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18295464.

The product of its (nonzero) digits is 34012224, while the sum is 66.

The square root of 9989309694 is about 99946.5341770289. The cubic root of 9989309694 is about 2153.6666974279. Note that the first 4 decimals are identical.

The spelling of 9989309694 in words is "nine billion, nine hundred eighty-nine million, three hundred nine thousand, six hundred ninety-four".