243433049599 has 2 divisors, whose sum is σ = 243433049600. Its totient is φ = 243433049598.

The previous prime is 243433049597. The next prime is 243433049627. The reversal of 243433049599 is 995940334342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243433049599 - 2¹ = 243433049597 is a prime.

Together with 243433049597, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243433049597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121716524799 + 121716524800.

It is an arithmetic number, because the mean of its divisors is an integer number (121716524800).

Almost surely, 2^243433049599 is an apocalyptic number.

243433049599 is a deficient number, since it is larger than the sum of its proper divisors (1).

243433049599 is an equidigital number, since it uses as much as digits as its factorization.

243433049599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 55.

The spelling of 243433049599 in words is "two hundred forty-three billion, four hundred thirty-three million, forty-nine thousand, five hundred ninety-nine".