348489803450809 has 2 divisors, whose sum is σ = 348489803450810. Its totient is φ = 348489803450808.

The previous prime is 348489803450807. The next prime is 348489803450911. The reversal of 348489803450809 is 908054308984843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330236230794409 + 18253572656400 = 18172403^2 + 4272420^2 .

It is a cyclic number.

It is not a de Polignac number, because 348489803450809 - 2¹ = 348489803450807 is a prime.

Together with 348489803450807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (348489803450807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174244901725404 + 174244901725405.

It is an arithmetic number, because the mean of its divisors is an integer number (174244901725405).

Almost surely, 2^{348489803450809} is an apocalyptic number.

It is an amenable number.

348489803450809 is a deficient number, since it is larger than the sum of its proper divisors (1).

348489803450809 is an equidigital number, since it uses as much as digits as its factorization.

348489803450809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 955514880, while the sum is 73.

The spelling of 348489803450809 in words is "three hundred forty-eight trillion, four hundred eighty-nine billion, eight hundred three million, four hundred fifty thousand, eight hundred nine".