11444975533 has 2 divisors, whose sum is σ = 11444975534. Its totient is φ = 11444975532.

The previous prime is 11444975519. The next prime is 11444975537. The reversal of 11444975533 is 33557944411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7897343689 + 3547631844 = 88867^2 + 59562^2 .

It is an emirp because it is prime and its reverse (33557944411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11444975533 is a prime.

It is a super-3 number, since 3×11444975533³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11444975537) 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, 5722487766 + 5722487767.

It is an arithmetic number, because the mean of its divisors is an integer number (5722487767).

Almost surely, 2^11444975533 is an apocalyptic number.

It is an amenable number.

11444975533 is a deficient number, since it is larger than the sum of its proper divisors (1).

11444975533 is an equidigital number, since it uses as much as digits as its factorization.

11444975533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 46.

The spelling of 11444975533 in words is "eleven billion, four hundred forty-four million, nine hundred seventy-five thousand, five hundred thirty-three".