243940709376059 has 2 divisors, whose sum is σ = 243940709376060. Its totient is φ = 243940709376058.

The previous prime is 243940709375999. The next prime is 243940709376071. The reversal of 243940709376059 is 950673907049342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243940709376059 - 2⁴⁰ = 242841197748283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243940709376059.

It is not a weakly prime, because it can be changed into another prime (243940709336059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121970354688029 + 121970354688030.

It is an arithmetic number, because the mean of its divisors is an integer number (121970354688030).

Almost surely, 2^{243940709376059} is an apocalyptic number.

243940709376059 is a deficient number, since it is larger than the sum of its proper divisors (1).

243940709376059 is an equidigital number, since it uses as much as digits as its factorization.

243940709376059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308629440, while the sum is 68.

The spelling of 243940709376059 in words is "two hundred forty-three trillion, nine hundred forty billion, seven hundred nine million, three hundred seventy-six thousand, fifty-nine".