9764972556 has 48 divisors (see below), whose sum is σ = 24034483200. Its totient is φ = 3077203392.

The previous prime is 9764972527. The next prime is 9764972557. The reversal of 9764972556 is 6552794679.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 9764972556.

It is not an unprimeable number, because it can be changed into a prime (9764972557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64506 + ... + 153918.

It is an arithmetic number, because the mean of its divisors is an integer number (500718400).

Almost surely, 2^9764972556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9764972556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12017241600).

9764972556 is an abundant number, since it is smaller than the sum of its proper divisors (14269510644).

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

9764972556 is a wasteful number, since it uses less digits than its factorization.

9764972556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89918 (or 89916 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 60.

The square root of 9764972556 is about 98817.8756905855. The cubic root of 9764972556 is about 2137.4223306411.

The spelling of 9764972556 in words is "nine billion, seven hundred sixty-four million, nine hundred seventy-two thousand, five hundred fifty-six".