395448056369 has 2 divisors, whose sum is σ = 395448056370. Its totient is φ = 395448056368.

The previous prime is 395448056357. The next prime is 395448056387. The reversal of 395448056369 is 963650844593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336817729600 + 58630326769 = 580360^2 + 242137^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395448056369 is a prime.

It is a super-2 number, since 2×395448056369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (395448056329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197724028184 + 197724028185.

It is an arithmetic number, because the mean of its divisors is an integer number (197724028185).

Almost surely, 2^395448056369 is an apocalyptic number.

It is an amenable number.

395448056369 is a deficient number, since it is larger than the sum of its proper divisors (1).

395448056369 is an equidigital number, since it uses as much as digits as its factorization.

395448056369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83980800, while the sum is 62.

The spelling of 395448056369 in words is "three hundred ninety-five billion, four hundred forty-eight million, fifty-six thousand, three hundred sixty-nine".