2164982784 has 44 divisors (see below), whose sum is σ = 5770476624. Its totient is φ = 721659904.

The previous prime is 2164982783. The next prime is 2164982821. The reversal of 2164982784 is 4872894612.

It is not an unprimeable number, because it can be changed into a prime (2164982783) 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, 349302 + ... + 355445.

It is an arithmetic number, because the mean of its divisors is an integer number (131147196).

Almost surely, 2^2164982784 is an apocalyptic number.

2164982784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2164982784 is an abundant number, since it is smaller than the sum of its proper divisors (3605493840).

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

2164982784 is an equidigital number, since it uses as much as digits as its factorization.

2164982784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704770 (or 704752 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 2164982784 is about 46529.3754954867. The cubic root of 2164982784 is about 1293.6540398102.

The spelling of 2164982784 in words is "two billion, one hundred sixty-four million, nine hundred eighty-two thousand, seven hundred eighty-four".