13540444063 has 2 divisors, whose sum is σ = 13540444064. Its totient is φ = 13540444062.

The previous prime is 13540444061. The next prime is 13540444091. The reversal of 13540444063 is 36044404531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13540444063 - 2¹ = 13540444061 is a prime.

Together with 13540444061, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13540444061) 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, 6770222031 + 6770222032.

It is an arithmetic number, because the mean of its divisors is an integer number (6770222032).

Almost surely, 2^13540444063 is an apocalyptic number.

13540444063 is a deficient number, since it is larger than the sum of its proper divisors (1).

13540444063 is an equidigital number, since it uses as much as digits as its factorization.

13540444063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 13540444063 its reverse (36044404531), we get a palindrome (49584848594).

The spelling of 13540444063 in words is "thirteen billion, five hundred forty million, four hundred forty-four thousand, sixty-three".