243234534018 has 48 divisors (see below), whose sum is σ = 565933047264. Its totient is φ = 69490612800.

The previous prime is 243234534007. The next prime is 243234534019. The reversal of 243234534018 is 810435432342.

243234534018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243234534019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6654693 + ... + 6691143.

It is an arithmetic number, because the mean of its divisors is an integer number (11790271818).

Almost surely, 2^243234534018 is an apocalyptic number.

243234534018 is an abundant number, since it is smaller than the sum of its proper divisors (322698513246).

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

243234534018 is a wasteful number, since it uses less digits than its factorization.

243234534018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59167 (or 59160 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 243234534018 in words is "two hundred forty-three billion, two hundred thirty-four million, five hundred thirty-four thousand, eighteen".