9643645798084 has 27 divisors (see below), whose sum is σ = 17298495437293. Its totient is φ = 4704093245600.

The previous prime is 9643645798081. The next prime is 9643645798133. The reversal of 9643645798084 is 4808975463469.

The square root of 9643645798084 is 3105422.

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

It can be written as a sum of positive squares in only one way, i.e., 464684895684 + 9178960902400 = 681678^2 + 3029680^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9643645797998 and 9643645798016.

It is not an unprimeable number, because it can be changed into a prime (9643645798081) 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 8 ways as a sum of consecutive naturals, for example, 254625669 + ... + 254663539.

Almost surely, 2^{9643645798084} is an apocalyptic number.

9643645798084 is the 3105422-nd square number.

It is an amenable number.

9643645798084 is a deficient number, since it is larger than the sum of its proper divisors (7654849639209).

9643645798084 is an frugal number, since it uses more digits than its factorization.

9643645798084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75828 (or 37914 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 73.

The spelling of 9643645798084 in words is "nine trillion, six hundred forty-three billion, six hundred forty-five million, seven hundred ninety-eight thousand, eighty-four".