194003038316257 has 2 divisors, whose sum is σ = 194003038316258. Its totient is φ = 194003038316256.

The previous prime is 194003038316209. The next prime is 194003038316267. The reversal of 194003038316257 is 752613830300491.

194003038316257 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., 109539751583376 + 84463286732881 = 10466124^2 + 9190391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194003038316257 is a prime.

It is not a weakly prime, because it can be changed into another prime (194003038316267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97001519158128 + 97001519158129.

It is an arithmetic number, because the mean of its divisors is an integer number (97001519158129).

It is a 1-persistent number, because it is pandigital, but 2⋅194003038316257 = 388006076632514 is not.

Almost surely, 2^{194003038316257} is an apocalyptic number.

It is an amenable number.

194003038316257 is a deficient number, since it is larger than the sum of its proper divisors (1).

194003038316257 is an equidigital number, since it uses as much as digits as its factorization.

194003038316257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 194003038316257 in words is "one hundred ninety-four trillion, three billion, thirty-eight million, three hundred sixteen thousand, two hundred fifty-seven".