2128896923 has 2 divisors, whose sum is σ = 2128896924. Its totient is φ = 2128896922.

The previous prime is 2128896907. The next prime is 2128896947. The reversal of 2128896923 is 3296988212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2128896923 - 2⁴ = 2128896907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128896953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064448461 + 1064448462.

It is an arithmetic number, because the mean of its divisors is an integer number (1064448462).

Almost surely, 2^2128896923 is an apocalyptic number.

2128896923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128896923 is an equidigital number, since it uses as much as digits as its factorization.

2128896923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 50.

The square root of 2128896923 is about 46139.9709904547. The cubic root of 2128896923 is about 1286.4262045451.

The spelling of 2128896923 in words is "two billion, one hundred twenty-eight million, eight hundred ninety-six thousand, nine hundred twenty-three".