243233144772727 has 2 divisors, whose sum is σ = 243233144772728. Its totient is φ = 243233144772726.

The previous prime is 243233144772637. The next prime is 243233144772743. The reversal of 243233144772727 is 727277441332342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243233144772727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243233144772227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121616572386363 + 121616572386364.

It is an arithmetic number, because the mean of its divisors is an integer number (121616572386364).

Almost surely, 2^{243233144772727} is an apocalyptic number.

243233144772727 is a deficient number, since it is larger than the sum of its proper divisors (1).

243233144772727 is an equidigital number, since it uses as much as digits as its factorization.

243233144772727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66382848, while the sum is 58.

The spelling of 243233144772727 in words is "two hundred forty-three trillion, two hundred thirty-three billion, one hundred forty-four million, seven hundred seventy-two thousand, seven hundred twenty-seven".