194854927313 has 2 divisors, whose sum is σ = 194854927314. Its totient is φ = 194854927312.

The previous prime is 194854927301. The next prime is 194854927321. The reversal of 194854927313 is 313729458491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122785766464 + 72069160849 = 350408^2 + 268457^2 .

It is a cyclic number.

It is not a de Polignac number, because 194854927313 - 2²² = 194850733009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (194854927363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97427463656 + 97427463657.

It is an arithmetic number, because the mean of its divisors is an integer number (97427463657).

Almost surely, 2^194854927313 is an apocalyptic number.

It is an amenable number.

194854927313 is a deficient number, since it is larger than the sum of its proper divisors (1).

194854927313 is an equidigital number, since it uses as much as digits as its factorization.

194854927313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 194854927313 in words is "one hundred ninety-four billion, eight hundred fifty-four million, nine hundred twenty-seven thousand, three hundred thirteen".