9661488396 has 192 divisors, whose sum is σ = 27538022400. Its totient is φ = 2577899520.

The previous prime is 9661488379. The next prime is 9661488439. The reversal of 9661488396 is 6938841669.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14355516 + ... + 14356188.

It is an arithmetic number, because the mean of its divisors is an integer number (143427200).

Almost surely, 2^9661488396 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 9661488396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13769011200).

9661488396 is an abundant number, since it is smaller than the sum of its proper divisors (17876534004).

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

9661488396 is a wasteful number, since it uses less digits than its factorization.

9661488396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 902 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 9661488396 is about 98292.8705247741. The cubic root of 9661488396 is about 2129.8450662064.

The spelling of 9661488396 in words is "nine billion, six hundred sixty-one million, four hundred eighty-eight thousand, three hundred ninety-six".