9643663713 has 4 divisors (see below), whose sum is σ = 12858218288. Its totient is φ = 6429109140.

The previous prime is 9643663699. The next prime is 9643663787. The reversal of 9643663713 is 3173663469.

9643663713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9643663713 - 2⁴ = 9643663697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9643163713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607277283 + ... + 1607277288.

It is an arithmetic number, because the mean of its divisors is an integer number (3214554572).

Almost surely, 2^9643663713 is an apocalyptic number.

It is an amenable number.

9643663713 is a deficient number, since it is larger than the sum of its proper divisors (3214554575).

9643663713 is a wasteful number, since it uses less digits than its factorization.

9643663713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3214554574.

The product of its digits is 1469664, while the sum is 48.

The square root of 9643663713 is about 98202.1573744691. The cubic root of 9643663713 is about 2128.5344612460.

The spelling of 9643663713 in words is "nine billion, six hundred forty-three million, six hundred sixty-three thousand, seven hundred thirteen".