13504453447 has 2 divisors, whose sum is σ = 13504453448. Its totient is φ = 13504453446.

The previous prime is 13504453429. The next prime is 13504453531. The reversal of 13504453447 is 74435440531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13504453447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13504453147) 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, 6752226723 + 6752226724.

It is an arithmetic number, because the mean of its divisors is an integer number (6752226724).

Almost surely, 2^13504453447 is an apocalyptic number.

13504453447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504453447 is an equidigital number, since it uses as much as digits as its factorization.

13504453447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

Adding to 13504453447 its reverse (74435440531), we get a palindrome (87939893978).

The spelling of 13504453447 in words is "thirteen billion, five hundred four million, four hundred fifty-three thousand, four hundred forty-seven".