2108711808 has 192 divisors, whose sum is σ = 7300425600. Its totient is φ = 570737664.

The previous prime is 2108711779. The next prime is 2108711849. The reversal of 2108711808 is 8081178012.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146335 + ... + 160097.

It is an arithmetic number, because the mean of its divisors is an integer number (38023050).

Almost surely, 2^2108711808 is an apocalyptic number.

2108711808 is a gapful number since it is divisible by the number (28) 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 2108711808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3650212800).

2108711808 is an abundant number, since it is smaller than the sum of its proper divisors (5191713792).

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

2108711808 is a wasteful number, since it uses less digits than its factorization.

2108711808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13809 (or 13794 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 36.

The square root of 2108711808 is about 45920.7121895992. The cubic root of 2108711808 is about 1282.3475408979.

The spelling of 2108711808 in words is "two billion, one hundred eight million, seven hundred eleven thousand, eight hundred eight".