9798327331987 has 2 divisors, whose sum is σ = 9798327331988. Its totient is φ = 9798327331986.

The previous prime is 9798327331981. The next prime is 9798327331993. The reversal of 9798327331987 is 7891337238979.

It is a balanced prime because it is at equal distance from previous prime (9798327331981) and next prime (9798327331993).

It is a cyclic number.

It is not a de Polignac number, because 9798327331987 - 2¹¹ = 9798327329939 is a prime.

It is not a weakly prime, because it can be changed into another prime (9798327331981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4899163665993 + 4899163665994.

It is an arithmetic number, because the mean of its divisors is an integer number (4899163665994).

Almost surely, 2^{9798327331987} is an apocalyptic number.

9798327331987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9798327331987 is an equidigital number, since it uses as much as digits as its factorization.

9798327331987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864162432, while the sum is 76.

The spelling of 9798327331987 in words is "nine trillion, seven hundred ninety-eight billion, three hundred twenty-seven million, three hundred thirty-one thousand, nine hundred eighty-seven".