18383728296911 has 2 divisors, whose sum is σ = 18383728296912. Its totient is φ = 18383728296910.

The previous prime is 18383728296863. The next prime is 18383728296953. The reversal of 18383728296911 is 11969282738381.

It is a strong prime.

It is an emirp because it is prime and its reverse (11969282738381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18383728296911 - 2⁶ = 18383728296847 is a prime.

It is a super-2 number, since 2×18383728296911² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18383728296511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9191864148455 + 9191864148456.

It is an arithmetic number, because the mean of its divisors is an integer number (9191864148456).

Almost surely, 2^{18383728296911} is an apocalyptic number.

18383728296911 is a deficient number, since it is larger than the sum of its proper divisors (1).

18383728296911 is an equidigital number, since it uses as much as digits as its factorization.

18383728296911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62705664, while the sum is 68.

The spelling of 18383728296911 in words is "eighteen trillion, three hundred eighty-three billion, seven hundred twenty-eight million, two hundred ninety-six thousand, nine hundred eleven".