9643068198241 has 3 divisors (see below), whose sum is σ = 9643071303571. Its totient is φ = 9643065092912.

The previous prime is 9643068198227. The next prime is 9643068198293. The reversal of 9643068198241 is 1428918603469.

It is a happy number.

The square root of 9643068198241 is 3105329.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 279712996641 + 9363355201600 = 528879^2 + 3059960^2 .

It is not a de Polignac number, because 9643068198241 - 2⁹ = 9643068197729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9643068198241.

It is not an unprimeable number, because it can be changed into a prime (9643068198941) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1552665 + ... + 4657993.

Almost surely, 2^{9643068198241} is an apocalyptic number.

9643068198241 is the 3105329-th square number.

9643068198241 is the 1552665-th centered octagonal number.

It is an amenable number.

9643068198241 is a deficient number, since it is larger than the sum of its proper divisors (3105330).

9643068198241 is an frugal number, since it uses more digits than its factorization.

9643068198241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6210658 (or 3105329 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 9643068198241 in words is "nine trillion, six hundred forty-three billion, sixty-eight million, one hundred ninety-eight thousand, two hundred forty-one".