9646489512 has 192 divisors, whose sum is σ = 29307096000. Its totient is φ = 2841062400.

The previous prime is 9646489507. The next prime is 9646489513. The reversal of 9646489512 is 2159846469.

9646489512 is a `hidden beast` number, since 9 + 6 + 46 + 4 + 89 + 512 = 666.

It is not an unprimeable number, because it can be changed into a prime (9646489513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13605414 + ... + 13606122.

It is an arithmetic number, because the mean of its divisors is an integer number (152641125).

Almost surely, 2^9646489512 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 9646489512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14653548000).

9646489512 is an abundant number, since it is smaller than the sum of its proper divisors (19660606488).

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

9646489512 is a wasteful number, since it uses less digits than its factorization.

9646489512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1185 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 9646489512 is about 98216.5439831803. The cubic root of 9646489512 is about 2128.7423429300.

The spelling of 9646489512 in words is "nine billion, six hundred forty-six million, four hundred eighty-nine thousand, five hundred twelve".