9791228160 has 504 divisors, whose sum is σ = 40213656000. Its totient is φ = 2236502016.

The previous prime is 9791228137. The next prime is 9791228171. The reversal of 9791228160 is 618221979.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6531091 + ... + 6532589.

It is an arithmetic number, because the mean of its divisors is an integer number (79789000).

Almost surely, 2^9791228160 is an apocalyptic number.

9791228160 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9791228160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20106828000).

9791228160 is an abundant number, since it is smaller than the sum of its proper divisors (30422427840).

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

9791228160 is an equidigital number, since it uses as much as digits as its factorization.

9791228160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 9791228160 is about 98950.6349651178. The cubic root of 9791228160 is about 2139.3362835296.

The spelling of 9791228160 in words is "nine billion, seven hundred ninety-one million, two hundred twenty-eight thousand, one hundred sixty".