395195843213 has 2 divisors, whose sum is σ = 395195843214. Its totient is φ = 395195843212.

The previous prime is 395195843209. The next prime is 395195843261. The reversal of 395195843213 is 312348591593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305059591684 + 90136251529 = 552322^2 + 300227^2 .

It is a cyclic number.

It is not a de Polignac number, because 395195843213 - 2² = 395195843209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (395195843113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197597921606 + 197597921607.

It is an arithmetic number, because the mean of its divisors is an integer number (197597921607).

Almost surely, 2^395195843213 is an apocalyptic number.

It is an amenable number.

395195843213 is a deficient number, since it is larger than the sum of its proper divisors (1).

395195843213 is an equidigital number, since it uses as much as digits as its factorization.

395195843213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3499200, while the sum is 53.

The spelling of 395195843213 in words is "three hundred ninety-five billion, one hundred ninety-five million, eight hundred forty-three thousand, two hundred thirteen".