9481964544 has 704 divisors, whose sum is σ = 33454202880. Its totient is φ = 2627665920.

The previous prime is 9481964539. The next prime is 9481964549. The reversal of 9481964544 is 4454691849.

9481964544 is a `hidden beast` number, since 9 + 4 + 8 + 1 + 96 + 4 + 544 = 666.

It is an interprime number because it is at equal distance from previous prime (9481964539) and next prime (9481964549).

It is a super-2 number, since 2×9481964544² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (9481964549) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 256269294 + ... + 256269330.

Almost surely, 2^9481964544 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 9481964544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16727101440).

9481964544 is an abundant number, since it is smaller than the sum of its proper divisors (23972238336).

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

9481964544 is a wasteful number, since it uses less digits than its factorization.

9481964544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 109 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 9481964544 is about 97375.3795576685. The cubic root of 9481964544 is about 2116.5706797511.

The spelling of 9481964544 in words is "nine billion, four hundred eighty-one million, nine hundred sixty-four thousand, five hundred forty-four".