199085618363 has 2 divisors, whose sum is σ = 199085618364. Its totient is φ = 199085618362.

The previous prime is 199085618339. The next prime is 199085618383. The reversal of 199085618363 is 363816580991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199085618363 - 2⁸ = 199085618107 is a prime.

It is not a weakly prime, because it can be changed into another prime (199085618383) 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, 99542809181 + 99542809182.

It is an arithmetic number, because the mean of its divisors is an integer number (99542809182).

Almost surely, 2^199085618363 is an apocalyptic number.

199085618363 is a deficient number, since it is larger than the sum of its proper divisors (1).

199085618363 is an equidigital number, since it uses as much as digits as its factorization.

199085618363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 199085618363 in words is "one hundred ninety-nine billion, eighty-five million, six hundred eighteen thousand, three hundred sixty-three".