2128440571 has 2 divisors, whose sum is σ = 2128440572. Its totient is φ = 2128440570.

The previous prime is 2128440547. The next prime is 2128440581. The reversal of 2128440571 is 1750448212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128440571 - 2¹¹ = 2128438523 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128440521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064220285 + 1064220286.

It is an arithmetic number, because the mean of its divisors is an integer number (1064220286).

Almost surely, 2^2128440571 is an apocalyptic number.

2128440571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128440571 is an equidigital number, since it uses as much as digits as its factorization.

2128440571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 2128440571 is about 46135.0254253750. The cubic root of 2128440571 is about 1286.3342782025.

Adding to 2128440571 its reverse (1750448212), we get a palindrome (3878888783).

The spelling of 2128440571 in words is "two billion, one hundred twenty-eight million, four hundred forty thousand, five hundred seventy-one".