11454424543 has 12 divisors (see below), whose sum is σ = 12203021592. Its totient is φ = 10749472640.

The previous prime is 11454424537. The next prime is 11454424559. The reversal of 11454424543 is 34542445411.

It is not a de Polignac number, because 11454424543 - 2²¹ = 11452327391 is a prime.

It is a super-2 number, since 2×11454424543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11454424043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43173 + ... + 157393.

It is an arithmetic number, because the mean of its divisors is an integer number (1016918466).

Almost surely, 2^11454424543 is an apocalyptic number.

11454424543 is a deficient number, since it is larger than the sum of its proper divisors (748597049).

11454424543 is a wasteful number, since it uses less digits than its factorization.

11454424543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114602 (or 114585 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

Adding to 11454424543 its reverse (34542445411), we get a palindrome (45996869954).

The spelling of 11454424543 in words is "eleven billion, four hundred fifty-four million, four hundred twenty-four thousand, five hundred forty-three".