1943560684049 has 2 divisors, whose sum is σ = 1943560684050. Its totient is φ = 1943560684048.

The previous prime is 1943560683949. The next prime is 1943560684081. The reversal of 1943560684049 is 9404860653491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1461741450625 + 481819233424 = 1209025^2 + 694132^2 .

It is an emirp because it is prime and its reverse (9404860653491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1943560684049 - 2¹² = 1943560679953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1943560687049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971780342024 + 971780342025.

It is an arithmetic number, because the mean of its divisors is an integer number (971780342025).

Almost surely, 2^{1943560684049} is an apocalyptic number.

It is an amenable number.

1943560684049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1943560684049 is an equidigital number, since it uses as much as digits as its factorization.

1943560684049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22394880, while the sum is 59.

The spelling of 1943560684049 in words is "one trillion, nine hundred forty-three billion, five hundred sixty million, six hundred eighty-four thousand, forty-nine".