9936758849 has 2 divisors, whose sum is σ = 9936758850. Its totient is φ = 9936758848.

The previous prime is 9936758831. The next prime is 9936758933. The reversal of 9936758849 is 9488576399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7482250000 + 2454508849 = 86500^2 + 49543^2 .

It is an emirp because it is prime and its reverse (9488576399) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9936758849 is a prime.

It is not a weakly prime, because it can be changed into another prime (9936757849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4968379424 + 4968379425.

It is an arithmetic number, because the mean of its divisors is an integer number (4968379425).

Almost surely, 2^9936758849 is an apocalyptic number.

It is an amenable number.

9936758849 is a deficient number, since it is larger than the sum of its proper divisors (1).

9936758849 is an equidigital number, since it uses as much as digits as its factorization.

9936758849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 68.

The square root of 9936758849 is about 99683.2927275178. The cubic root of 9936758849 is about 2149.8834513349.

The spelling of 9936758849 in words is "nine billion, nine hundred thirty-six million, seven hundred fifty-eight thousand, eight hundred forty-nine".