18382738182923 has 2 divisors, whose sum is σ = 18382738182924. Its totient is φ = 18382738182922.

The previous prime is 18382738182911. The next prime is 18382738182943. The reversal of 18382738182923 is 32928183728381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18382738182923 - 2¹⁸ = 18382737920779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18382738182923.

It is not a weakly prime, because it can be changed into another prime (18382738182943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9191369091461 + 9191369091462.

It is an arithmetic number, because the mean of its divisors is an integer number (9191369091462).

Almost surely, 2^{18382738182923} is an apocalyptic number.

18382738182923 is a deficient number, since it is larger than the sum of its proper divisors (1).

18382738182923 is an equidigital number, since it uses as much as digits as its factorization.

18382738182923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55738368, while the sum is 65.

The spelling of 18382738182923 in words is "eighteen trillion, three hundred eighty-two billion, seven hundred thirty-eight million, one hundred eighty-two thousand, nine hundred twenty-three".