4238835000209 has 2 divisors, whose sum is σ = 4238835000210. Its totient is φ = 4238835000208.

The previous prime is 4238835000079. The next prime is 4238835000233. The reversal of 4238835000209 is 9020005388324.

4238835000209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4232187043984 + 6647956225 = 2057228^2 + 81535^2 .

It is a cyclic number.

It is not a de Polignac number, because 4238835000209 - 2¹² = 4238834996113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4238835000209.

It is not a weakly prime, because it can be changed into another prime (4238835000289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2119417500104 + 2119417500105.

It is an arithmetic number, because the mean of its divisors is an integer number (2119417500105).

Almost surely, 2^{4238835000209} is an apocalyptic number.

It is an amenable number.

4238835000209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4238835000209 is an equidigital number, since it uses as much as digits as its factorization.

4238835000209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 4238835000209 in words is "four trillion, two hundred thirty-eight billion, eight hundred thirty-five million, two hundred nine", and thus it is an aban number.