13578001334543 has 2 divisors, whose sum is σ = 13578001334544. Its totient is φ = 13578001334542.

The previous prime is 13578001334533. The next prime is 13578001334587. The reversal of 13578001334543 is 34543310087531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13578001334543 - 2⁶ = 13578001334479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13578001334533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6789000667271 + 6789000667272.

It is an arithmetic number, because the mean of its divisors is an integer number (6789000667272).

Almost surely, 2^{13578001334543} is an apocalyptic number.

13578001334543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13578001334543 is an equidigital number, since it uses as much as digits as its factorization.

13578001334543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 13578001334543 in words is "thirteen trillion, five hundred seventy-eight billion, one million, three hundred thirty-four thousand, five hundred forty-three".