13543434533 has 2 divisors, whose sum is σ = 13543434534. Its totient is φ = 13543434532.

The previous prime is 13543434491. The next prime is 13543434547. The reversal of 13543434533 is 33543434531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9565231204 + 3978203329 = 97802^2 + 63073^2 .

It is a cyclic number.

It is not a de Polignac number, because 13543434533 - 2⁸ = 13543434277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13543434833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771717266 + 6771717267.

It is an arithmetic number, because the mean of its divisors is an integer number (6771717267).

Almost surely, 2^13543434533 is an apocalyptic number.

It is an amenable number.

13543434533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13543434533 is an equidigital number, since it uses as much as digits as its factorization.

13543434533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 38.

The spelling of 13543434533 in words is "thirteen billion, five hundred forty-three million, four hundred thirty-four thousand, five hundred thirty-three".