395848555898839 has 2 divisors, whose sum is σ = 395848555898840. Its totient is φ = 395848555898838.

The previous prime is 395848555898827. The next prime is 395848555898921. The reversal of 395848555898839 is 938898555848593.

It is a weak prime.

It is an emirp because it is prime and its reverse (938898555848593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 395848555898839 - 2⁴⁷ = 255111067543511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395848555895839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197924277949419 + 197924277949420.

It is an arithmetic number, because the mean of its divisors is an integer number (197924277949420).

Almost surely, 2^{395848555898839} is an apocalyptic number.

395848555898839 is a deficient number, since it is larger than the sum of its proper divisors (1).

395848555898839 is an equidigital number, since it uses as much as digits as its factorization.

395848555898839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 537477120000, while the sum is 97.

The spelling of 395848555898839 in words is "three hundred ninety-five trillion, eight hundred forty-eight billion, five hundred fifty-five million, eight hundred ninety-eight thousand, eight hundred thirty-nine".