2321911808 has 52 divisors (see below), whose sum is σ = 4719883548. Its totient is φ = 1141800960.

The previous prime is 2321911769. The next prime is 2321911859. The reversal of 2321911808 is 8081191232.

It can be written as a sum of positive squares in 2 ways, for example, as 121176064 + 2200735744 = 11008^2 + 46912^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245210 + ... + 254502.

Almost surely, 2^2321911808 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 2321911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2359941774).

2321911808 is an abundant number, since it is smaller than the sum of its proper divisors (2397971740).

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

2321911808 is an frugal number, since it uses more digits than its factorization.

2321911808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378 (or 9356 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 2321911808 is about 48186.2201049221. The cubic root of 2321911808 is about 1324.1847236657.

The spelling of 2321911808 in words is "two billion, three hundred twenty-one million, nine hundred eleven thousand, eight hundred eight".