9651619216 has 20 divisors (see below), whose sum is σ = 18778262400. Its totient is φ = 4805616032.

The previous prime is 9651619207. The next prime is 9651619277. The reversal of 9651619216 is 6129161569.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258156 + ... + 1265803.

It is an arithmetic number, because the mean of its divisors is an integer number (938913120).

Almost surely, 2^9651619216 is an apocalyptic number.

It is an amenable number.

9651619216 is a deficient number, since it is larger than the sum of its proper divisors (9126643184).

9651619216 is a wasteful number, since it uses less digits than its factorization.

9651619216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524206 (or 2524200 counting only the distinct ones).

The product of its digits is 174960, while the sum is 46.

The square root of 9651619216 is about 98242.6547686900. The cubic root of 9651619216 is about 2129.1196091215.

The spelling of 9651619216 in words is "nine billion, six hundred fifty-one million, six hundred nineteen thousand, two hundred sixteen".