13465822543 has 2 divisors, whose sum is σ = 13465822544. Its totient is φ = 13465822542.

The previous prime is 13465822541. The next prime is 13465822567. The reversal of 13465822543 is 34522856431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13465822543 - 2¹ = 13465822541 is a prime.

Together with 13465822541, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13465822543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13465822541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6732911271 + 6732911272.

It is an arithmetic number, because the mean of its divisors is an integer number (6732911272).

Almost surely, 2^13465822543 is an apocalyptic number.

13465822543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13465822543 is an equidigital number, since it uses as much as digits as its factorization.

13465822543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 43.

The spelling of 13465822543 in words is "thirteen billion, four hundred sixty-five million, eight hundred twenty-two thousand, five hundred forty-three".