9807081648 has 160 divisors (see below), whose sum is σ = 32822899200. Its totient is φ = 2450331648.

The previous prime is 9807081643. The next prime is 9807081649. The reversal of 9807081648 is 8461807089.

It is a self number, because there is not a number n which added to its sum of digits gives 9807081648.

It is not an unprimeable number, because it can be changed into a prime (9807081643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23908 + ... + 142076.

It is an arithmetic number, because the mean of its divisors is an integer number (205143120).

Almost surely, 2^9807081648 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 9807081648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16411449600).

9807081648 is an abundant number, since it is smaller than the sum of its proper divisors (23015817552).

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

9807081648 is a wasteful number, since it uses less digits than its factorization.

9807081648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118219 (or 118213 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The square root of 9807081648 is about 99030.7106305918. The cubic root of 9807081648 is about 2140.4902978838.

The spelling of 9807081648 in words is "nine billion, eight hundred seven million, eighty-one thousand, six hundred forty-eight".