9816919116 has 12 divisors (see below), whose sum is σ = 22906144632. Its totient is φ = 3272306368.

The previous prime is 9816919111. The next prime is 9816919129. The reversal of 9816919116 is 6119196189.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (9816919111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409038285 + ... + 409038308.

It is an arithmetic number, because the mean of its divisors is an integer number (1908845386).

Almost surely, 2^9816919116 is an apocalyptic number.

It is an amenable number.

9816919116 is an abundant number, since it is smaller than the sum of its proper divisors (13089225516).

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

9816919116 is a wasteful number, since it uses less digits than its factorization.

9816919116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818076600 (or 818076598 counting only the distinct ones).

The product of its digits is 209952, while the sum is 51.

The square root of 9816919116 is about 99080.3669553156. The cubic root of 9816919116 is about 2141.2057661796.

The spelling of 9816919116 in words is "nine billion, eight hundred sixteen million, nine hundred nineteen thousand, one hundred sixteen".