9117947498 has 12 divisors (see below), whose sum is σ = 15033310530. Its totient is φ = 4144521480.

The previous prime is 9117947491. The next prime is 9117947521. The reversal of 9117947498 is 8947497119.

It can be written as a sum of positive squares in only one way, i.e., 6180632689 + 2937314809 = 78617^2 + 54197^2 .

It is not an unprimeable number, because it can be changed into a prime (9117947491) 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 in 5 ways as a sum of consecutive naturals, for example, 18838493 + ... + 18838976.

Almost surely, 2^9117947498 is an apocalyptic number.

9117947498 is a deficient number, since it is larger than the sum of its proper divisors (5915363032).

9117947498 is a wasteful number, since it uses less digits than its factorization.

9117947498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37677493 (or 37677482 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 59.

The square root of 9117947498 is about 95487.9442547592. The cubic root of 9117947498 is about 2089.1311069620.

The spelling of 9117947498 in words is "nine billion, one hundred seventeen million, nine hundred forty-seven thousand, four hundred ninety-eight".