9845165217 has 8 divisors (see below), whose sum is σ = 13200222240. Its totient is φ = 6526775840.

The previous prime is 9845165201. The next prime is 9845165243. The reversal of 9845165217 is 7125615489.

It is a happy number.

9845165217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9845165217 - 2⁴ = 9845165201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9845165117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9166284 + ... + 9167357.

It is an arithmetic number, because the mean of its divisors is an integer number (1650027780).

Almost surely, 2^9845165217 is an apocalyptic number.

It is an amenable number.

9845165217 is a deficient number, since it is larger than the sum of its proper divisors (3355057023).

9845165217 is a wasteful number, since it uses less digits than its factorization.

9845165217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18333823.

The product of its digits is 604800, while the sum is 48.

The square root of 9845165217 is about 99222.8059319026. The cubic root of 9845165217 is about 2143.2574214005.

The spelling of 9845165217 in words is "nine billion, eight hundred forty-five million, one hundred sixty-five thousand, two hundred seventeen".