11421776833 has 2 divisors, whose sum is σ = 11421776834. Its totient is φ = 11421776832.

The previous prime is 11421776749. The next prime is 11421776857. The reversal of 11421776833 is 33867712411.

It is a happy number.

11421776833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11090827969 + 330948864 = 105313^2 + 18192^2 .

It is a cyclic number.

It is not a de Polignac number, because 11421776833 - 2⁹ = 11421776321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11421776833.

It is not a weakly prime, because it can be changed into another prime (11421776633) 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, 5710888416 + 5710888417.

It is an arithmetic number, because the mean of its divisors is an integer number (5710888417).

Almost surely, 2^11421776833 is an apocalyptic number.

It is an amenable number.

11421776833 is a deficient number, since it is larger than the sum of its proper divisors (1).

11421776833 is an equidigital number, since it uses as much as digits as its factorization.

11421776833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The spelling of 11421776833 in words is "eleven billion, four hundred twenty-one million, seven hundred seventy-six thousand, eight hundred thirty-three".