12198327817 has 16 divisors (see below), whose sum is σ = 13712307840. Its totient is φ = 10766904192.

The previous prime is 12198327773. The next prime is 12198327871. The reversal of 12198327817 is 71872389121.

12198327817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12198327817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12198327517) 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 15 ways as a sum of consecutive naturals, for example, 1409658 + ... + 1418284.

It is an arithmetic number, because the mean of its divisors is an integer number (857019240).

Almost surely, 2^12198327817 is an apocalyptic number.

It is an amenable number.

12198327817 is a deficient number, since it is larger than the sum of its proper divisors (1513980023).

12198327817 is a wasteful number, since it uses less digits than its factorization.

12198327817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13392.

The product of its digits is 338688, while the sum is 49.

The spelling of 12198327817 in words is "twelve billion, one hundred ninety-eight million, three hundred twenty-seven thousand, eight hundred seventeen".