8321648985 has 96 divisors (see below), whose sum is σ = 15907207680. Its totient is φ = 3999131136.

The previous prime is 8321648921. The next prime is 8321648987. The reversal of 8321648985 is 5898461238.

8321648985 is a `hidden beast` number, since 83 + 2 + 1 + 6 + 489 + 85 = 666.

8321648985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8321648985 - 2⁶ = 8321648921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8321648987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7409634 + ... + 7410756.

It is an arithmetic number, because the mean of its divisors is an integer number (165700080).

Almost surely, 2^8321648985 is an apocalyptic number.

It is an amenable number.

8321648985 is a deficient number, since it is larger than the sum of its proper divisors (7585558695).

8321648985 is a wasteful number, since it uses less digits than its factorization.

8321648985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439 (or 1436 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 8321648985 is about 91223.0726570860. The cubic root of 8321648985 is about 2026.4526677604.

The spelling of 8321648985 in words is "eight billion, three hundred twenty-one million, six hundred forty-eight thousand, nine hundred eighty-five".