13442521447 has 2 divisors, whose sum is σ = 13442521448. Its totient is φ = 13442521446.

The previous prime is 13442521439. The next prime is 13442521481. The reversal of 13442521447 is 74412524431.

13442521447 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 is a cyclic number.

It is not a de Polignac number, because 13442521447 - 2³ = 13442521439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13442521427) 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, 6721260723 + 6721260724.

It is an arithmetic number, because the mean of its divisors is an integer number (6721260724).

Almost surely, 2^13442521447 is an apocalyptic number.

13442521447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442521447 is an equidigital number, since it uses as much as digits as its factorization.

13442521447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 37.

The spelling of 13442521447 in words is "thirteen billion, four hundred forty-two million, five hundred twenty-one thousand, four hundred forty-seven".