9644532285960 has 1024 divisors, whose sum is σ = 38109367296000. Its totient is φ = 2138855362560.

The previous prime is 9644532285889. The next prime is 9644532285989. The reversal of 9644532285960 is 695822354469.

It is a happy number.

9644532285960 is a `hidden beast` number, since 9 + 6 + 4 + 4 + 5 + 32 + 2 + 8 + 596 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 10922459679 + ... + 10922460561.

It is an arithmetic number, because the mean of its divisors is an integer number (37216179000).

Almost surely, 2^{9644532285960} is an apocalyptic number.

9644532285960 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9644532285960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19054683648000).

9644532285960 is an abundant number, since it is smaller than the sum of its proper divisors (28464835010040).

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

9644532285960 is a wasteful number, since it uses less digits than its factorization.

9644532285960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1473 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 9644532285960 in words is "nine trillion, six hundred forty-four billion, five hundred thirty-two million, two hundred eighty-five thousand, nine hundred sixty".