243543404464 has 20 divisors (see below), whose sum is σ = 471999166360. Its totient is φ = 121737168000.

The previous prime is 243543404453. The next prime is 243543404473. The reversal of 243543404464 is 464404345342.

243543404464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×243543404464³ (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 243543404464.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2100162 + ... + 2213089.

It is an arithmetic number, because the mean of its divisors is an integer number (23599958318).

Almost surely, 2^243543404464 is an apocalyptic number.

It is an amenable number.

243543404464 is a deficient number, since it is larger than the sum of its proper divisors (228455761896).

243543404464 is a wasteful number, since it uses less digits than its factorization.

243543404464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316788 (or 4316782 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 43.

The spelling of 243543404464 in words is "two hundred forty-three billion, five hundred forty-three million, four hundred four thousand, four hundred sixty-four".