42424144033 has 2 divisors, whose sum is σ = 42424144034. Its totient is φ = 42424144032.

The previous prime is 42424144013. The next prime is 42424144067. The reversal of 42424144033 is 33044142424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23077559569 + 19346584464 = 151913^2 + 139092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42424144033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42424143986 and 42424144004.

It is not a weakly prime, because it can be changed into another prime (42424144003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21212072016 + 21212072017.

It is an arithmetic number, because the mean of its divisors is an integer number (21212072017).

Almost surely, 2^42424144033 is an apocalyptic number.

It is an amenable number.

42424144033 is a deficient number, since it is larger than the sum of its proper divisors (1).

42424144033 is an equidigital number, since it uses as much as digits as its factorization.

42424144033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 42424144033 its reverse (33044142424), we get a palindrome (75468286457).

The spelling of 42424144033 in words is "forty-two billion, four hundred twenty-four million, one hundred forty-four thousand, thirty-three".