243723634368 has 56 divisors (see below), whose sum is σ = 645038608320. Its totient is φ = 81217716480.

The previous prime is 243723634321. The next prime is 243723634369. The reversal of 243723634368 is 863436327342.

243723634368 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 243723634368.

It is not an unprimeable number, because it can be changed into a prime (243723634369) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 488463 + ... + 852081.

Almost surely, 2^243723634368 is an apocalyptic number.

It is an amenable number.

243723634368 is an abundant number, since it is smaller than the sum of its proper divisors (401314973952).

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

243723634368 is a wasteful number, since it uses less digits than its factorization.

243723634368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367125 (or 367115 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 51.

The spelling of 243723634368 in words is "two hundred forty-three billion, seven hundred twenty-three million, six hundred thirty-four thousand, three hundred sixty-eight".