42446844593 has 2 divisors, whose sum is σ = 42446844594. Its totient is φ = 42446844592.

The previous prime is 42446844533. The next prime is 42446844611. The reversal of 42446844593 is 39544864424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25050025984 + 17396818609 = 158272^2 + 131897^2 .

It is a cyclic number.

It is not a de Polignac number, because 42446844593 - 2¹⁴ = 42446828209 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 (42446844533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21223422296 + 21223422297.

It is an arithmetic number, because the mean of its divisors is an integer number (21223422297).

Almost surely, 2^42446844593 is an apocalyptic number.

It is an amenable number.

42446844593 is a deficient number, since it is larger than the sum of its proper divisors (1).

42446844593 is an equidigital number, since it uses as much as digits as its factorization.

42446844593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13271040, while the sum is 53.

The spelling of 42446844593 in words is "forty-two billion, four hundred forty-six million, eight hundred forty-four thousand, five hundred ninety-three".