42443224273 has 2 divisors, whose sum is σ = 42443224274. Its totient is φ = 42443224272.

The previous prime is 42443224249. The next prime is 42443224289. The reversal of 42443224273 is 37242234424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42428996289 + 14227984 = 205983^2 + 3772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42443224273 is a prime.

It is not a weakly prime, because it can be changed into another prime (42443224223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21221612136 + 21221612137.

It is an arithmetic number, because the mean of its divisors is an integer number (21221612137).

Almost surely, 2^42443224273 is an apocalyptic number.

It is an amenable number.

42443224273 is a deficient number, since it is larger than the sum of its proper divisors (1).

42443224273 is an equidigital number, since it uses as much as digits as its factorization.

42443224273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 37.

Adding to 42443224273 its reverse (37242234424), we get a palindrome (79685458697).

The spelling of 42443224273 in words is "forty-two billion, four hundred forty-three million, two hundred twenty-four thousand, two hundred seventy-three".