11444517481 has 2 divisors, whose sum is σ = 11444517482. Its totient is φ = 11444517480.

The previous prime is 11444517479. The next prime is 11444517517. The reversal of 11444517481 is 18471544411.

11444517481 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., 10903536400 + 540981081 = 104420^2 + 23259^2 .

It is a cyclic number.

It is not a de Polignac number, because 11444517481 - 2¹ = 11444517479 is a prime.

It is a super-2 number, since 2×11444517481² (a number of 21 digits) contains 22 as substring.

Together with 11444517479, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11444517401) 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, 5722258740 + 5722258741.

It is an arithmetic number, because the mean of its divisors is an integer number (5722258741).

Almost surely, 2^11444517481 is an apocalyptic number.

It is an amenable number.

11444517481 is a deficient number, since it is larger than the sum of its proper divisors (1).

11444517481 is an equidigital number, since it uses as much as digits as its factorization.

11444517481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 40.

The spelling of 11444517481 in words is "eleven billion, four hundred forty-four million, five hundred seventeen thousand, four hundred eighty-one".