243334055909 has 6 divisors (see below), whose sum is σ = 283062065094. Its totient is φ = 208572047880.

The previous prime is 243334055837. The next prime is 243334055911. The reversal of 243334055909 is 909550433342.

It can be written as a sum of positive squares in only one way, i.e., 243224539684 + 109516225 = 493178^2 + 10465^2 .

It is not a de Polignac number, because 243334055909 - 2¹⁶ = 243333990373 is a prime.

It is a super-2 number, since 2×243334055909² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243334055969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2483000522 + ... + 2483000619.

It is an arithmetic number, because the mean of its divisors is an integer number (47177010849).

Almost surely, 2^243334055909 is an apocalyptic number.

It is an amenable number.

243334055909 is a deficient number, since it is larger than the sum of its proper divisors (39728009185).

243334055909 is an equidigital number, since it uses as much as digits as its factorization.

243334055909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966001155 (or 4966001148 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 243334055909 in words is "two hundred forty-three billion, three hundred thirty-four million, fifty-five thousand, nine hundred nine".