2163908910 has 64 divisors (see below), whose sum is σ = 5329981440. Its totient is φ = 562024320.

The previous prime is 2163908897. The next prime is 2163908927. The reversal of 2163908910 is 198093612.

It is a Curzon number.

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, 216115 + ... + 225905.

It is an arithmetic number, because the mean of its divisors is an integer number (83280960).

Almost surely, 2^2163908910 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163908910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2664990720).

2163908910 is an abundant number, since it is smaller than the sum of its proper divisors (3166072530).

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

2163908910 is a wasteful number, since it uses less digits than its factorization.

2163908910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 2163908910 is about 46517.8343219028. The cubic root of 2163908910 is about 1293.4401118280.

The spelling of 2163908910 in words is "two billion, one hundred sixty-three million, nine hundred eight thousand, nine hundred ten".