243223554227441 has 64 divisors (see below), whose sum is σ = 257664779550720. Its totient is φ = 229280233608000.

The previous prime is 243223554227431. The next prime is 243223554227443. The reversal of 243223554227441 is 144722455322342.

It is not a de Polignac number, because 243223554227441 - 2¹⁸ = 243223553965297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243223554227441.

It is not an unprimeable number, because it can be changed into a prime (243223554227443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87145664756 + ... + 87145667546.

It is an arithmetic number, because the mean of its divisors is an integer number (4026012180480).

Almost surely, 2^{243223554227441} is an apocalyptic number.

It is an amenable number.

243223554227441 is a deficient number, since it is larger than the sum of its proper divisors (14441225323279).

243223554227441 is a wasteful number, since it uses less digits than its factorization.

243223554227441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its digits is 12902400, while the sum is 50.

The spelling of 243223554227441 in words is "two hundred forty-three trillion, two hundred twenty-three billion, five hundred fifty-four million, two hundred twenty-seven thousand, four hundred forty-one".