243543322452 has 12 divisors (see below), whose sum is σ = 568267752416. Its totient is φ = 81181107480.

The previous prime is 243543322427. The next prime is 243543322453. The reversal of 243543322452 is 254223345342.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×243543322452³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243543322452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243543322453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10147638424 + ... + 10147638447.

Almost surely, 2^243543322452 is an apocalyptic number.

It is an amenable number.

243543322452 is an abundant number, since it is smaller than the sum of its proper divisors (324724429964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243543322452 is a wasteful number, since it uses less digits than its factorization.

243543322452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20295276878 (or 20295276876 counting only the distinct ones).

The product of its digits is 691200, while the sum is 39.

Adding to 243543322452 its reverse (254223345342), we get a palindrome (497766667794).

The spelling of 243543322452 in words is "two hundred forty-three billion, five hundred forty-three million, three hundred twenty-two thousand, four hundred fifty-two".