9722997312 has 224 divisors, whose sum is σ = 30101267712. Its totient is φ = 2712600576.

The previous prime is 9722997311. The next prime is 9722997337. The reversal of 9722997312 is 2137992279.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (9722997311) 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 31 ways as a sum of consecutive naturals, for example, 11086218 + ... + 11087094.

Almost surely, 2^9722997312 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 9722997312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15050633856).

9722997312 is an abundant number, since it is smaller than the sum of its proper divisors (20378270400).

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

9722997312 is a wasteful number, since it uses less digits than its factorization.

9722997312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1075 counting only the distinct ones).

The product of its digits is 857304, while the sum is 51.

The square root of 9722997312 is about 98605.2600625342. The cubic root of 9722997312 is about 2134.3553247379.

The spelling of 9722997312 in words is "nine billion, seven hundred twenty-two million, nine hundred ninety-seven thousand, three hundred twelve".