9641211646 has 32 divisors (see below), whose sum is σ = 16392689280. Its totient is φ = 4212549600.

The previous prime is 9641211571. The next prime is 9641211707. The reversal of 9641211646 is 6461121469.

It is a junction number, because it is equal to n+sod(n) for n = 9641211599 and 9641211608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111541 + ... + 178111.

It is an arithmetic number, because the mean of its divisors is an integer number (512271540).

Almost surely, 2^9641211646 is an apocalyptic number.

9641211646 is a deficient number, since it is larger than the sum of its proper divisors (6751477634).

9641211646 is a wasteful number, since it uses less digits than its factorization.

9641211646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66840.

The product of its digits is 62208, while the sum is 40.

The square root of 9641211646 is about 98189.6717888394. The cubic root of 9641211646 is about 2128.3540404815.

The spelling of 9641211646 in words is "nine billion, six hundred forty-one million, two hundred eleven thousand, six hundred forty-six".