2128262893 has 2 divisors, whose sum is σ = 2128262894. Its totient is φ = 2128262892.

The previous prime is 2128262881. The next prime is 2128262897. The reversal of 2128262893 is 3982628212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1413609604 + 714653289 = 37598^2 + 26733^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128262893 - 2¹⁷ = 2128131821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128262897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064131446 + 1064131447.

It is an arithmetic number, because the mean of its divisors is an integer number (1064131447).

Almost surely, 2^2128262893 is an apocalyptic number.

It is an amenable number.

2128262893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128262893 is an equidigital number, since it uses as much as digits as its factorization.

2128262893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 2128262893 is about 46133.0997549482. The cubic root of 2128262893 is about 1286.2984836611.

The spelling of 2128262893 in words is "two billion, one hundred twenty-eight million, two hundred sixty-two thousand, eight hundred ninety-three".