42038038433 has 2 divisors, whose sum is σ = 42038038434. Its totient is φ = 42038038432.

The previous prime is 42038038421. The next prime is 42038038463. The reversal of 42038038433 is 33483083024.

42038038433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35542806784 + 6495231649 = 188528^2 + 80593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42038038433 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 (42038038463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21019019216 + 21019019217.

It is an arithmetic number, because the mean of its divisors is an integer number (21019019217).

Almost surely, 2^42038038433 is an apocalyptic number.

It is an amenable number.

42038038433 is a deficient number, since it is larger than the sum of its proper divisors (1).

42038038433 is an equidigital number, since it uses as much as digits as its factorization.

42038038433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 42038038433 in words is "forty-two billion, thirty-eight million, thirty-eight thousand, four hundred thirty-three".