2109982164 has 12 divisors (see below), whose sum is σ = 4923291744. Its totient is φ = 703327384.

The previous prime is 2109982153. The next prime is 2109982169. The reversal of 2109982164 is 4612899012.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109982169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87915912 + ... + 87915935.

It is an arithmetic number, because the mean of its divisors is an integer number (410274312).

Almost surely, 2^2109982164 is an apocalyptic number.

It is an amenable number.

2109982164 is an abundant number, since it is smaller than the sum of its proper divisors (2813309580).

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

2109982164 is a wasteful number, since it uses less digits than its factorization.

2109982164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175831854 (or 175831852 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2109982164 is about 45934.5421659997. The cubic root of 2109982164 is about 1282.6049983762.

The spelling of 2109982164 in words is "two billion, one hundred nine million, nine hundred eighty-two thousand, one hundred sixty-four".