13543434547 has 2 divisors, whose sum is σ = 13543434548. Its totient is φ = 13543434546.

The previous prime is 13543434533. The next prime is 13543434581. The reversal of 13543434547 is 74543434531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13543434547 - 2⁷ = 13543434419 is a prime.

It is not a weakly prime, because it can be changed into another prime (13543432547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771717273 + 6771717274.

It is an arithmetic number, because the mean of its divisors is an integer number (6771717274).

Almost surely, 2^13543434547 is an apocalyptic number.

13543434547 is a deficient number, since it is larger than the sum of its proper divisors (1).

13543434547 is an equidigital number, since it uses as much as digits as its factorization.

13543434547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1209600, while the sum is 43.

The spelling of 13543434547 in words is "thirteen billion, five hundred forty-three million, four hundred thirty-four thousand, five hundred forty-seven".