199694584399 has 2 divisors, whose sum is σ = 199694584400. Its totient is φ = 199694584398.

The previous prime is 199694584381. The next prime is 199694584409. The reversal of 199694584399 is 993485496991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 199694584399 - 2¹⁵ = 199694551631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199694584699) 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, 99847292199 + 99847292200.

It is an arithmetic number, because the mean of its divisors is an integer number (99847292200).

Almost surely, 2^199694584399 is an apocalyptic number.

199694584399 is a deficient number, since it is larger than the sum of its proper divisors (1).

199694584399 is an equidigital number, since it uses as much as digits as its factorization.

199694584399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680244480, while the sum is 76.

The spelling of 199694584399 in words is "one hundred ninety-nine billion, six hundred ninety-four million, five hundred eighty-four thousand, three hundred ninety-nine".