9859893149 has 2 divisors, whose sum is σ = 9859893150. Its totient is φ = 9859893148.

The previous prime is 9859893049. The next prime is 9859893157. The reversal of 9859893149 is 9413989589.

9859893149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5698740100 + 4161153049 = 75490^2 + 64507^2 .

It is a cyclic number.

It is not a de Polignac number, because 9859893149 - 2²⁸ = 9591457693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9859893049) 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 as a sum of consecutive naturals, namely, 4929946574 + 4929946575.

It is an arithmetic number, because the mean of its divisors is an integer number (4929946575).

Almost surely, 2^9859893149 is an apocalyptic number.

It is an amenable number.

9859893149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9859893149 is an equidigital number, since it uses as much as digits as its factorization.

9859893149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25194240, while the sum is 65.

The square root of 9859893149 is about 99296.9946624771. The cubic root of 9859893149 is about 2144.3256283702.

The spelling of 9859893149 in words is "nine billion, eight hundred fifty-nine million, eight hundred ninety-three thousand, one hundred forty-nine".