195427018357 has 2 divisors, whose sum is σ = 195427018358. Its totient is φ = 195427018356.

The previous prime is 195427018301. The next prime is 195427018417. The reversal of 195427018357 is 753810724591.

195427018357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191109739921 + 4317278436 = 437161^2 + 65706^2 .

It is a cyclic number.

It is not a de Polignac number, because 195427018357 - 2³¹ = 193279534709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195427013357) 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, 97713509178 + 97713509179.

It is an arithmetic number, because the mean of its divisors is an integer number (97713509179).

Almost surely, 2^195427018357 is an apocalyptic number.

It is an amenable number.

195427018357 is a deficient number, since it is larger than the sum of its proper divisors (1).

195427018357 is an equidigital number, since it uses as much as digits as its factorization.

195427018357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 195427018357 in words is "one hundred ninety-five billion, four hundred twenty-seven million, eighteen thousand, three hundred fifty-seven".