42033433009 has 2 divisors, whose sum is σ = 42033433010. Its totient is φ = 42033433008.

The previous prime is 42033433007. The next prime is 42033433027. The reversal of 42033433009 is 90033433024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29031048225 + 13002384784 = 170385^2 + 114028^2 .

It is a cyclic number.

It is not a de Polignac number, because 42033433009 - 2¹ = 42033433007 is a prime.

Together with 42033433007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42033433007) 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, 21016716504 + 21016716505.

It is an arithmetic number, because the mean of its divisors is an integer number (21016716505).

Almost surely, 2^42033433009 is an apocalyptic number.

It is an amenable number.

42033433009 is a deficient number, since it is larger than the sum of its proper divisors (1).

42033433009 is an equidigital number, since it uses as much as digits as its factorization.

42033433009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

The spelling of 42033433009 in words is "forty-two billion, thirty-three million, four hundred thirty-three thousand, nine".