4042402310909 has 2 divisors, whose sum is σ = 4042402310910. Its totient is φ = 4042402310908.

The previous prime is 4042402310867. The next prime is 4042402310911. The reversal of 4042402310909 is 9090132042404.

4042402310909 is digitally balanced in base 3, 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., 2128689754009 + 1913712556900 = 1459003^2 + 1383370^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042402310909 - 2¹⁶ = 4042402245373 is a prime.

It is a Sophie Germain prime.

Together with 4042402310911, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042402310959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021201155454 + 2021201155455.

It is an arithmetic number, because the mean of its divisors is an integer number (2021201155455).

Almost surely, 2^{4042402310909} is an apocalyptic number.

It is an amenable number.

4042402310909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042402310909 is an equidigital number, since it uses as much as digits as its factorization.

4042402310909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 4042402310909 in words is "four trillion, forty-two billion, four hundred two million, three hundred ten thousand, nine hundred nine".