9821317612 has 24 divisors (see below), whose sum is σ = 17612425152. Its totient is φ = 4789276800.

The previous prime is 9821317603. The next prime is 9821317613. The reversal of 9821317612 is 2167131289.

9821317612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9821317613) 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, 587238 + ... + 603730.

It is an arithmetic number, because the mean of its divisors is an integer number (733851048).

Almost surely, 2^9821317612 is an apocalyptic number.

It is an amenable number.

9821317612 is a deficient number, since it is larger than the sum of its proper divisors (7791107540).

9821317612 is a wasteful number, since it uses less digits than its factorization.

9821317612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20169 (or 20167 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 9821317612 is about 99102.5610768965. The cubic root of 9821317612 is about 2141.5255093576.

The spelling of 9821317612 in words is "nine billion, eight hundred twenty-one million, three hundred seventeen thousand, six hundred twelve".