180042257548441 has 2 divisors, whose sum is σ = 180042257548442. Its totient is φ = 180042257548440.

The previous prime is 180042257548339. The next prime is 180042257548487. The reversal of 180042257548441 is 144845752240081.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101688266083600 + 78353991464841 = 10084060^2 + 8851779^2 .

It is a cyclic number.

It is not a de Polignac number, because 180042257548441 - 2²³ = 180042249159833 is a prime.

It is not a weakly prime, because it can be changed into another prime (180042257548141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90021128774220 + 90021128774221.

It is an arithmetic number, because the mean of its divisors is an integer number (90021128774221).

Almost surely, 2^{180042257548441} is an apocalyptic number.

It is an amenable number.

180042257548441 is a deficient number, since it is larger than the sum of its proper divisors (1).

180042257548441 is an equidigital number, since it uses as much as digits as its factorization.

180042257548441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11468800, while the sum is 55.

The spelling of 180042257548441 in words is "one hundred eighty trillion, forty-two billion, two hundred fifty-seven million, five hundred forty-eight thousand, four hundred forty-one".