9864989159 has 2 divisors, whose sum is σ = 9864989160. Its totient is φ = 9864989158.

The previous prime is 9864989137. The next prime is 9864989161. The reversal of 9864989159 is 9519894689.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9864989159 is a prime.

It is a super-2 number, since 2×9864989159² (a number of 21 digits) contains 22 as substring.

Together with 9864989161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9864989119) 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, 4932494579 + 4932494580.

It is an arithmetic number, because the mean of its divisors is an integer number (4932494580).

Almost surely, 2^9864989159 is an apocalyptic number.

9864989159 is a deficient number, since it is larger than the sum of its proper divisors (1).

9864989159 is an equidigital number, since it uses as much as digits as its factorization.

9864989159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50388480, while the sum is 68.

The square root of 9864989159 is about 99322.6517920258. The cubic root of 9864989159 is about 2144.6949908174.

The spelling of 9864989159 in words is "nine billion, eight hundred sixty-four million, nine hundred eighty-nine thousand, one hundred fifty-nine".