5205465668939 has 2 divisors, whose sum is σ = 5205465668940. Its totient is φ = 5205465668938.

The previous prime is 5205465668933. The next prime is 5205465669037. The reversal of 5205465668939 is 9398665645025.

5205465668939 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5205465668939 is a prime.

It is not a weakly prime, because it can be changed into another prime (5205465668933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602732834469 + 2602732834470.

It is an arithmetic number, because the mean of its divisors is an integer number (2602732834470).

Almost surely, 2^{5205465668939} is an apocalyptic number.

5205465668939 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205465668939 is an equidigital number, since it uses as much as digits as its factorization.

5205465668939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904000, while the sum is 68.

The spelling of 5205465668939 in words is "five trillion, two hundred five billion, four hundred sixty-five million, six hundred sixty-eight thousand, nine hundred thirty-nine".