194756672317 has 2 divisors, whose sum is σ = 194756672318. Its totient is φ = 194756672316.

The previous prime is 194756672281. The next prime is 194756672371. The reversal of 194756672317 is 713276657491.

It is a happy number.

Together with next prime (194756672371) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168778002276 + 25978670041 = 410826^2 + 161179^2 .

It is a cyclic number.

It is not a de Polignac number, because 194756672317 - 2⁷ = 194756672189 is a prime.

It is a super-2 number, since 2×194756672317² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194756672387) 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, 97378336158 + 97378336159.

It is an arithmetic number, because the mean of its divisors is an integer number (97378336159).

Almost surely, 2^194756672317 is an apocalyptic number.

It is an amenable number.

194756672317 is a deficient number, since it is larger than the sum of its proper divisors (1).

194756672317 is an equidigital number, since it uses as much as digits as its factorization.

194756672317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13335840, while the sum is 58.

The spelling of 194756672317 in words is "one hundred ninety-four billion, seven hundred fifty-six million, six hundred seventy-two thousand, three hundred seventeen".