243006721560752 has 40 divisors (see below), whose sum is σ = 486741706026576. Its totient is φ = 117454219739136.

The previous prime is 243006721560737. The next prime is 243006721560761. The reversal of 243006721560752 is 257065127600342.

It is a self number, because there is not a number n which added to its sum of digits gives 243006721560752.

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 7 ways as a sum of consecutive naturals, for example, 1820590193 + ... + 1820723664.

Almost surely, 2^{243006721560752} is an apocalyptic number.

It is an amenable number.

243006721560752 is an abundant number, since it is smaller than the sum of its proper divisors (243734984465824).

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

243006721560752 is a wasteful number, since it uses less digits than its factorization.

243006721560752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641314005 (or 3641313999 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 243006721560752 in words is "two hundred forty-three trillion, six billion, seven hundred twenty-one million, five hundred sixty thousand, seven hundred fifty-two".