13543603650443 has 4 divisors (see below), whose sum is σ = 13543834328880. Its totient is φ = 13543372972008.

The previous prime is 13543603650433. The next prime is 13543603650449. The reversal of 13543603650443 is 34405630634531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13543603650443 - 2¹² = 13543603646347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13543603650449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115251128 + ... + 115368581.

It is an arithmetic number, because the mean of its divisors is an integer number (3385958582220).

Almost surely, 2^{13543603650443} is an apocalyptic number.

13543603650443 is a deficient number, since it is larger than the sum of its proper divisors (230678437).

13543603650443 is an equidigital number, since it uses as much as digits as its factorization.

13543603650443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230678436.

The product of its (nonzero) digits is 4665600, while the sum is 47.

The spelling of 13543603650443 in words is "thirteen trillion, five hundred forty-three billion, six hundred three million, six hundred fifty thousand, four hundred forty-three".