9717042618 has 24 divisors (see below), whose sum is σ = 21055982688. Its totient is φ = 3238646472.

The previous prime is 9717042593. The next prime is 9717042619. The reversal of 9717042618 is 8162407179.

It is a happy number.

9717042618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9717042619) 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 in 11 ways as a sum of consecutive naturals, for example, 166621 + ... + 217247.

It is an arithmetic number, because the mean of its divisors is an integer number (877332612).

Almost surely, 2^9717042618 is an apocalyptic number.

9717042618 is an abundant number, since it is smaller than the sum of its proper divisors (11338940070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9717042618 is a wasteful number, since it uses less digits than its factorization.

9717042618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61298 (or 61295 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 9717042618 is about 98575.0608318351. The cubic root of 9717042618 is about 2133.9195185119.

The spelling of 9717042618 in words is "nine billion, seven hundred seventeen million, forty-two thousand, six hundred eighteen".