199736287633423 has 2 divisors, whose sum is σ = 199736287633424. Its totient is φ = 199736287633422.

The previous prime is 199736287633403. The next prime is 199736287633459. The reversal of 199736287633423 is 324336782637991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199736287633423 - 2³³ = 199727697698831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199736287633403) 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, 99868143816711 + 99868143816712.

It is an arithmetic number, because the mean of its divisors is an integer number (99868143816712).

Almost surely, 2^{199736287633423} is an apocalyptic number.

199736287633423 is a deficient number, since it is larger than the sum of its proper divisors (1).

199736287633423 is an equidigital number, since it uses as much as digits as its factorization.

199736287633423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1481421312, while the sum is 73.

The spelling of 199736287633423 in words is "one hundred ninety-nine trillion, seven hundred thirty-six billion, two hundred eighty-seven million, six hundred thirty-three thousand, four hundred twenty-three".