9659631744 has 384 divisors, whose sum is σ = 34736532480. Its totient is φ = 2512650240.

The previous prime is 9659631743. The next prime is 9659631781. The reversal of 9659631744 is 4471369569.

9659631744 is a `hidden beast` number, since 9 + 6 + 596 + 3 + 1 + 7 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (9659631743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4248592 + ... + 4250864.

It is an arithmetic number, because the mean of its divisors is an integer number (90459720).

Almost surely, 2^9659631744 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 9659631744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17368266240).

9659631744 is an abundant number, since it is smaller than the sum of its proper divisors (25076900736).

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

9659631744 is a wasteful number, since it uses less digits than its factorization.

9659631744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348 (or 2333 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 9659631744 is about 98283.4255813258. The cubic root of 9659631744 is about 2129.7086264133.

The spelling of 9659631744 in words is "nine billion, six hundred fifty-nine million, six hundred thirty-one thousand, seven hundred forty-four".