243214447799 has 2 divisors, whose sum is σ = 243214447800. Its totient is φ = 243214447798.

The previous prime is 243214447793. The next prime is 243214447873. The reversal of 243214447799 is 997744412342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243214447799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243214447793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121607223899 + 121607223900.

It is an arithmetic number, because the mean of its divisors is an integer number (121607223900).

Almost surely, 2^243214447799 is an apocalyptic number.

243214447799 is a deficient number, since it is larger than the sum of its proper divisors (1).

243214447799 is an equidigital number, since it uses as much as digits as its factorization.

243214447799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12192768, while the sum is 56.

The spelling of 243214447799 in words is "two hundred forty-three billion, two hundred fourteen million, four hundred forty-seven thousand, seven hundred ninety-nine".