8691644116 has 24 divisors (see below), whose sum is σ = 15266351016. Its totient is φ = 4329861120.

The previous prime is 8691644113. The next prime is 8691644119. The reversal of 8691644116 is 6114461968.

8691644116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8691644113) and next prime (8691644119).

It can be written as a sum of positive squares in 4 ways, for example, as 3275272900 + 5416371216 = 57230^2 + 73596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8691644113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1282176 + ... + 1288936.

It is an arithmetic number, because the mean of its divisors is an integer number (636097959).

Almost surely, 2^8691644116 is an apocalyptic number.

It is an amenable number.

8691644116 is a deficient number, since it is larger than the sum of its proper divisors (6574706900).

8691644116 is a wasteful number, since it uses less digits than its factorization.

8691644116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7899 (or 7897 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 8691644116 is about 93228.9875307031. The cubic root of 8691644116 is about 2056.0514519895.

The spelling of 8691644116 in words is "eight billion, six hundred ninety-one million, six hundred forty-four thousand, one hundred sixteen".