9939629676 has 96 divisors (see below), whose sum is σ = 25647552000. Its totient is φ = 2981975040.

The previous prime is 9939629669. The next prime is 9939629719. The reversal of 9939629676 is 6769269399.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 774996 + ... + 787716.

It is an arithmetic number, because the mean of its divisors is an integer number (267162000).

Almost surely, 2^9939629676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9939629676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12823776000).

9939629676 is an abundant number, since it is smaller than the sum of its proper divisors (15707922324).

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

9939629676 is a wasteful number, since it uses less digits than its factorization.

9939629676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12919 (or 12917 counting only the distinct ones).

The product of its digits is 59521392, while the sum is 66.

The square root of 9939629676 is about 99697.6914276354. The cubic root of 9939629676 is about 2150.0904721979.

The spelling of 9939629676 in words is "nine billion, nine hundred thirty-nine million, six hundred twenty-nine thousand, six hundred seventy-six".