243724120463 has 4 divisors (see below), whose sum is σ = 249668611248. Its totient is φ = 237779629680.

The previous prime is 243724120459. The next prime is 243724120477. The reversal of 243724120463 is 364021427342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243724120463 - 2² = 243724120459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243724122463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2972245331 + ... + 2972245412.

It is an arithmetic number, because the mean of its divisors is an integer number (62417152812).

Almost surely, 2^243724120463 is an apocalyptic number.

243724120463 is a deficient number, since it is larger than the sum of its proper divisors (5944490785).

243724120463 is an equidigital number, since it uses as much as digits as its factorization.

243724120463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944490784.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 243724120463 in words is "two hundred forty-three billion, seven hundred twenty-four million, one hundred twenty thousand, four hundred sixty-three".