9855327768 has 128 divisors (see below), whose sum is σ = 29652134400. Its totient is φ = 2689459200.

The previous prime is 9855327751. The next prime is 9855327773. The reversal of 9855327768 is 8677235589.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105693 + ... + 175731.

It is an arithmetic number, because the mean of its divisors is an integer number (231657300).

Almost surely, 2^9855327768 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 9855327768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14826067200).

9855327768 is an abundant number, since it is smaller than the sum of its proper divisors (19796806632).

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

9855327768 is a wasteful number, since it uses less digits than its factorization.

9855327768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70113 (or 70109 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 60.

The square root of 9855327768 is about 99274.0034853032. The cubic root of 9855327768 is about 2143.9946181967.

The spelling of 9855327768 in words is "nine billion, eight hundred fifty-five million, three hundred twenty-seven thousand, seven hundred sixty-eight".