243238348864 has 63 divisors (see below), whose sum is σ = 561544120623. Its totient is φ = 104233170048.

The previous prime is 243238348849. The next prime is 243238348909. The reversal of 243238348864 is 468843832342.

The square root of 243238348864 is 493192.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27614349 + ... + 27623155.

Almost surely, 2^243238348864 is an apocalyptic number.

243238348864 is the 493192-nd square number.

It is an amenable number.

243238348864 is an abundant number, since it is smaller than the sum of its proper divisors (318305771759).

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

243238348864 is an frugal number, since it uses more digits than its factorization.

243238348864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17640 (or 8816 counting only the distinct ones).

The product of its digits is 21233664, while the sum is 55.

The spelling of 243238348864 in words is "two hundred forty-three billion, two hundred thirty-eight million, three hundred forty-eight thousand, eight hundred sixty-four".