9898526249 has 2 divisors, whose sum is σ = 9898526250. Its totient is φ = 9898526248.

The previous prime is 9898526219. The next prime is 9898526251. The reversal of 9898526249 is 9426258989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9628515625 + 270010624 = 98125^2 + 16432^2 .

It is a cyclic number.

It is not a de Polignac number, because 9898526249 - 2¹⁶ = 9898460713 is a prime.

Together with 9898526251, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9898526191 and 9898526200.

It is not a weakly prime, because it can be changed into another prime (9898526219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949263124 + 4949263125.

It is an arithmetic number, because the mean of its divisors is an integer number (4949263125).

Almost surely, 2^9898526249 is an apocalyptic number.

It is an amenable number.

9898526249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898526249 is an equidigital number, since it uses as much as digits as its factorization.

9898526249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22394880, while the sum is 62.

The square root of 9898526249 is about 99491.3375575985. The cubic root of 9898526249 is about 2147.1226155451.

The spelling of 9898526249 in words is "nine billion, eight hundred ninety-eight million, five hundred twenty-six thousand, two hundred forty-nine".