18393019999099 has 2 divisors, whose sum is σ = 18393019999100. Its totient is φ = 18393019999098.

The previous prime is 18393019998923. The next prime is 18393019999103. The reversal of 18393019999099 is 99099991039381.

It is a strong prime.

It is an emirp because it is prime and its reverse (99099991039381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18393019999099 - 2¹⁵ = 18393019966331 is a prime.

It is not a weakly prime, because it can be changed into another prime (18393019999699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9196509999549 + 9196509999550.

It is an arithmetic number, because the mean of its divisors is an integer number (9196509999550).

Almost surely, 2^{18393019999099} is an apocalyptic number.

18393019999099 is a deficient number, since it is larger than the sum of its proper divisors (1).

18393019999099 is an equidigital number, since it uses as much as digits as its factorization.

18393019999099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344373768, while the sum is 79.

The spelling of 18393019999099 in words is "eighteen trillion, three hundred ninety-three billion, nineteen million, nine hundred ninety-nine thousand, ninety-nine".