9643639533604 has 48 divisors (see below), whose sum is σ = 17773441652736. Its totient is φ = 4574046708000.

The previous prime is 9643639533599. The next prime is 9643639533623. The reversal of 9643639533604 is 4063359363469.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5074972 + ... + 6711379.

It is an arithmetic number, because the mean of its divisors is an integer number (370280034432).

Almost surely, 2^{9643639533604} is an apocalyptic number.

It is an amenable number.

9643639533604 is a deficient number, since it is larger than the sum of its proper divisors (8129802119132).

9643639533604 is a wasteful number, since it uses less digits than its factorization.

9643639533604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786536 (or 11786534 counting only the distinct ones).

The product of its (nonzero) digits is 113374080, while the sum is 61.

The spelling of 9643639533604 in words is "nine trillion, six hundred forty-three billion, six hundred thirty-nine million, five hundred thirty-three thousand, six hundred four".