243948672043 has 2 divisors, whose sum is σ = 243948672044. Its totient is φ = 243948672042.

The previous prime is 243948671983. The next prime is 243948672047. The reversal of 243948672043 is 340276849342.

243948672043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243948672043 - 2¹⁷ = 243948540971 is a prime.

It is not a weakly prime, because it can be changed into another prime (243948672047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121974336021 + 121974336022.

It is an arithmetic number, because the mean of its divisors is an integer number (121974336022).

Almost surely, 2^243948672043 is an apocalyptic number.

243948672043 is a deficient number, since it is larger than the sum of its proper divisors (1).

243948672043 is an equidigital number, since it uses as much as digits as its factorization.

243948672043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6967296, while the sum is 52.

The spelling of 243948672043 in words is "two hundred forty-three billion, nine hundred forty-eight million, six hundred seventy-two thousand, forty-three".