9720936228864 has 96 divisors (see below), whose sum is σ = 29618477703360. Its totient is φ = 2777410338816.

The previous prime is 9720936228853. The next prime is 9720936228881. The reversal of 9720936228864 is 4688226390279.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 9720936228795 and 9720936228804.

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 7 ways as a sum of consecutive naturals, for example, 112970109 + ... + 113056124.

It is an arithmetic number, because the mean of its divisors is an integer number (308525809410).

Almost surely, 2^{9720936228864} is an apocalyptic number.

It is an amenable number.

9720936228864 is an abundant number, since it is smaller than the sum of its proper divisors (19897541474496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9720936228864 is a wasteful number, since it uses less digits than its factorization.

9720936228864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226026265 (or 226026245 counting only the distinct ones).

The product of its (nonzero) digits is 125411328, while the sum is 66.

The spelling of 9720936228864 in words is "nine trillion, seven hundred twenty billion, nine hundred thirty-six million, two hundred twenty-eight thousand, eight hundred sixty-four".