538933445789 has 2 divisors, whose sum is σ = 538933445790. Its totient is φ = 538933445788.

The previous prime is 538933445747. The next prime is 538933445801. The reversal of 538933445789 is 987544339835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463386525625 + 75546920164 = 680725^2 + 274858^2 .

It is a cyclic number.

It is not a de Polignac number, because 538933445789 - 2²⁴ = 538916668573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538933445189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269466722894 + 269466722895.

It is an arithmetic number, because the mean of its divisors is an integer number (269466722895).

Almost surely, 2^538933445789 is an apocalyptic number.

It is an amenable number.

538933445789 is a deficient number, since it is larger than the sum of its proper divisors (1).

538933445789 is an equidigital number, since it uses as much as digits as its factorization.

538933445789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 391910400, while the sum is 68.

The spelling of 538933445789 in words is "five hundred thirty-eight billion, nine hundred thirty-three million, four hundred forty-five thousand, seven hundred eighty-nine".