9646221271 has 8 divisors (see below), whose sum is σ = 9927630720. Its totient is φ = 9365901408.

The previous prime is 9646221181. The next prime is 9646221313. The reversal of 9646221271 is 1721226469.

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 9646221271 - 2²⁵ = 9612666839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9646227271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254416 + ... + 289861.

It is an arithmetic number, because the mean of its divisors is an integer number (1240953840).

Almost surely, 2^9646221271 is an apocalyptic number.

9646221271 is a deficient number, since it is larger than the sum of its proper divisors (281409449).

9646221271 is a wasteful number, since it uses less digits than its factorization.

9646221271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544793.

The product of its digits is 72576, while the sum is 40.

The square root of 9646221271 is about 98215.1784145404. The cubic root of 9646221271 is about 2128.7226113559.

The spelling of 9646221271 in words is "nine billion, six hundred forty-six million, two hundred twenty-one thousand, two hundred seventy-one".