9643131210431 has 4 divisors (see below), whose sum is σ = 9643266032232. Its totient is φ = 9642996388632.

The previous prime is 9643131210367. The next prime is 9643131210439. The reversal of 9643131210431 is 1340121313469.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9643131210431 - 2⁶ = 9643131210367 is a prime.

It is a super-2 number, since 2×9643131210431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9643131210439) 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 3 ways as a sum of consecutive naturals, for example, 67303556 + ... + 67446681.

It is an arithmetic number, because the mean of its divisors is an integer number (2410816508058).

Almost surely, 2^{9643131210431} is an apocalyptic number.

9643131210431 is a deficient number, since it is larger than the sum of its proper divisors (134821801).

9643131210431 is a wasteful number, since it uses less digits than its factorization.

9643131210431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134821800.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 9643131210431 in words is "nine trillion, six hundred forty-three billion, one hundred thirty-one million, two hundred ten thousand, four hundred thirty-one".