9643016636 has 12 divisors (see below), whose sum is σ = 18409395480. Its totient is φ = 4383189360.

The previous prime is 9643016633. The next prime is 9643016759. The reversal of 9643016636 is 6366103469.

9643016636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 219159469 = 9643016636 / (9 + 6 + 4 + 3 + 0 + 1 + 6 + 6 + 3 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9643016633) 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, 109579691 + ... + 109579778.

It is an arithmetic number, because the mean of its divisors is an integer number (1534116290).

Almost surely, 2^9643016636 is an apocalyptic number.

9643016636 is the 52490-th centered heptagonal number.

It is an amenable number.

9643016636 is a deficient number, since it is larger than the sum of its proper divisors (8766378844).

9643016636 is a wasteful number, since it uses less digits than its factorization.

9643016636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219159484 (or 219159482 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 9643016636 is about 98198.8627021719. The cubic root of 9643016636 is about 2128.4868529047.

The spelling of 9643016636 in words is "nine billion, six hundred forty-three million, sixteen thousand, six hundred thirty-six".