395865153040873 has 2 divisors, whose sum is σ = 395865153040874. Its totient is φ = 395865153040872.

The previous prime is 395865153040859. The next prime is 395865153040919. The reversal of 395865153040873 is 378040351568593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362896518324649 + 32968634716224 = 19049843^2 + 5741832^2 .

It is a cyclic number.

It is not a de Polignac number, because 395865153040873 - 2⁹ = 395865153040361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395865153040799 and 395865153040808.

It is not a weakly prime, because it can be changed into another prime (395865153040843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197932576520436 + 197932576520437.

It is an arithmetic number, because the mean of its divisors is an integer number (197932576520437).

Almost surely, 2^{395865153040873} is an apocalyptic number.

It is an amenable number.

395865153040873 is a deficient number, since it is larger than the sum of its proper divisors (1).

395865153040873 is an equidigital number, since it uses as much as digits as its factorization.

395865153040873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592000, while the sum is 67.

The spelling of 395865153040873 in words is "three hundred ninety-five trillion, eight hundred sixty-five billion, one hundred fifty-three million, forty thousand, eight hundred seventy-three".