243346525672741 has 2 divisors, whose sum is σ = 243346525672742. Its totient is φ = 243346525672740.

The previous prime is 243346525672639. The next prime is 243346525672751. The reversal of 243346525672741 is 147276525643342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243301628300641 + 44897372100 = 15598129^2 + 211890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243346525672741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243346525672741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243346525672751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121673262836370 + 121673262836371.

It is an arithmetic number, because the mean of its divisors is an integer number (121673262836371).

Almost surely, 2^{243346525672741} is an apocalyptic number.

It is an amenable number.

243346525672741 is a deficient number, since it is larger than the sum of its proper divisors (1).

243346525672741 is an equidigital number, since it uses as much as digits as its factorization.

243346525672741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 203212800, while the sum is 61.

The spelling of 243346525672741 in words is "two hundred forty-three trillion, three hundred forty-six billion, five hundred twenty-five million, six hundred seventy-two thousand, seven hundred forty-one".