9865410181328 has 80 divisors (see below), whose sum is σ = 20804525008512. Its totient is φ = 4504680000000.

The previous prime is 9865410181267. The next prime is 9865410181351. The reversal of 9865410181328 is 8231810145689.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26939453 + ... + 27303203.

Almost surely, 2^{9865410181328} 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 9865410181328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10402262504256).

9865410181328 is an abundant number, since it is smaller than the sum of its proper divisors (10939114827184).

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

9865410181328 is a wasteful number, since it uses less digits than its factorization.

9865410181328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365164 (or 365158 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 9865410181328 in words is "nine trillion, eight hundred sixty-five billion, four hundred ten million, one hundred eighty-one thousand, three hundred twenty-eight".