194754423593 has 2 divisors, whose sum is σ = 194754423594. Its totient is φ = 194754423592.

The previous prime is 194754423587. The next prime is 194754423607. The reversal of 194754423593 is 395324457491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116002910464 + 78751513129 = 340592^2 + 280627^2 .

It is a cyclic number.

It is not a de Polignac number, because 194754423593 - 2²⁰ = 194753375017 is a prime.

It is not a weakly prime, because it can be changed into another prime (194754423893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97377211796 + 97377211797.

It is an arithmetic number, because the mean of its divisors is an integer number (97377211797).

Almost surely, 2^194754423593 is an apocalyptic number.

It is an amenable number.

194754423593 is a deficient number, since it is larger than the sum of its proper divisors (1).

194754423593 is an equidigital number, since it uses as much as digits as its factorization.

194754423593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 56.

The spelling of 194754423593 in words is "one hundred ninety-four billion, seven hundred fifty-four million, four hundred twenty-three thousand, five hundred ninety-three".