2133867689 has 2 divisors, whose sum is σ = 2133867690. Its totient is φ = 2133867688.

The previous prime is 2133867679. The next prime is 2133867731. The reversal of 2133867689 is 9867683312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2112781225 + 21086464 = 45965^2 + 4592^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133867689 - 2⁸ = 2133867433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2133867689.

It is not a weakly prime, because it can be changed into another prime (2133867629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066933844 + 1066933845.

It is an arithmetic number, because the mean of its divisors is an integer number (1066933845).

Almost surely, 2^2133867689 is an apocalyptic number.

It is an amenable number.

2133867689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133867689 is an equidigital number, since it uses as much as digits as its factorization.

2133867689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The square root of 2133867689 is about 46193.8057427617. The cubic root of 2133867689 is about 1287.4266527355.

The spelling of 2133867689 in words is "two billion, one hundred thirty-three million, eight hundred sixty-seven thousand, six hundred eighty-nine".