211089085469 has 2 divisors, whose sum is σ = 211089085470. Its totient is φ = 211089085468.

The previous prime is 211089085463. The next prime is 211089085489. The reversal of 211089085469 is 964580980112.

211089085469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131161314244 + 79927771225 = 362162^2 + 282715^2 .

It is a cyclic number.

It is not a de Polignac number, because 211089085469 - 2²⁸ = 210820650013 is a prime.

It is a super-2 number, since 2×211089085469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211089085469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211089085463) 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, 105544542734 + 105544542735.

It is an arithmetic number, because the mean of its divisors is an integer number (105544542735).

Almost surely, 2^211089085469 is an apocalyptic number.

It is an amenable number.

211089085469 is a deficient number, since it is larger than the sum of its proper divisors (1).

211089085469 is an equidigital number, since it uses as much as digits as its factorization.

211089085469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The spelling of 211089085469 in words is "two hundred eleven billion, eighty-nine million, eighty-five thousand, four hundred sixty-nine".