2111723808 has 96 divisors (see below), whose sum is σ = 5706904896. Its totient is φ = 683332608.

The previous prime is 2111723797. The next prime is 2111723849. The reversal of 2111723808 is 8083271112.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712666 + ... + 715622.

It is an arithmetic number, because the mean of its divisors is an integer number (59446926).

Almost surely, 2^2111723808 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 2111723808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853452448).

2111723808 is an abundant number, since it is smaller than the sum of its proper divisors (3595181088).

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

2111723808 is a wasteful number, since it uses less digits than its factorization.

2111723808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3186 (or 3178 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 2111723808 is about 45953.4961455600. The cubic root of 2111723808 is about 1282.9578018253.

The spelling of 2111723808 in words is "two billion, one hundred eleven million, seven hundred twenty-three thousand, eight hundred eight".