195056218829 has 2 divisors, whose sum is σ = 195056218830. Its totient is φ = 195056218828.

The previous prime is 195056218817. The next prime is 195056218831. The reversal of 195056218829 is 928812650591.

It is a happy number.

195056218829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100506118729 + 94550100100 = 317027^2 + 307490^2 .

It is a cyclic number.

It is not a de Polignac number, because 195056218829 - 2¹⁶ = 195056153293 is a prime.

Together with 195056218831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195056218849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97528109414 + 97528109415.

It is an arithmetic number, because the mean of its divisors is an integer number (97528109415).

Almost surely, 2^195056218829 is an apocalyptic number.

It is an amenable number.

195056218829 is a deficient number, since it is larger than the sum of its proper divisors (1).

195056218829 is an equidigital number, since it uses as much as digits as its factorization.

195056218829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 56.

The spelling of 195056218829 in words is "one hundred ninety-five billion, fifty-six million, two hundred eighteen thousand, eight hundred twenty-nine".