243648584041 has 2 divisors, whose sum is σ = 243648584042. Its totient is φ = 243648584040.

The previous prime is 243648584027. The next prime is 243648584083. The reversal of 243648584041 is 140485846342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132626344041 + 111022240000 = 364179^2 + 333200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243648584041 is a prime.

It is not a weakly prime, because it can be changed into another prime (243648588041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121824292020 + 121824292021.

It is an arithmetic number, because the mean of its divisors is an integer number (121824292021).

Almost surely, 2^243648584041 is an apocalyptic number.

It is an amenable number.

243648584041 is a deficient number, since it is larger than the sum of its proper divisors (1).

243648584041 is an equidigital number, since it uses as much as digits as its factorization.

243648584041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2949120, while the sum is 49.

The spelling of 243648584041 in words is "two hundred forty-three billion, six hundred forty-eight million, five hundred eighty-four thousand, forty-one".