34209038939 has 2 divisors, whose sum is σ = 34209038940. Its totient is φ = 34209038938.

The previous prime is 34209038933. The next prime is 34209038947. The reversal of 34209038939 is 93983090243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34209038939 - 2²⁸ = 33940603483 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (34209038933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17104519469 + 17104519470.

It is an arithmetic number, because the mean of its divisors is an integer number (17104519470).

Almost surely, 2^34209038939 is an apocalyptic number.

34209038939 is a deficient number, since it is larger than the sum of its proper divisors (1).

34209038939 is an equidigital number, since it uses as much as digits as its factorization.

34209038939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 50.

The spelling of 34209038939 in words is "thirty-four billion, two hundred nine million, thirty-eight thousand, nine hundred thirty-nine".