18106263823 has 2 divisors, whose sum is σ = 18106263824. Its totient is φ = 18106263822.

The previous prime is 18106263779. The next prime is 18106263859. The reversal of 18106263823 is 32836260181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18106263823 - 2²¹ = 18104166671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18106263323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053131911 + 9053131912.

It is an arithmetic number, because the mean of its divisors is an integer number (9053131912).

Almost surely, 2^18106263823 is an apocalyptic number.

18106263823 is a deficient number, since it is larger than the sum of its proper divisors (1).

18106263823 is an equidigital number, since it uses as much as digits as its factorization.

18106263823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 18106263823 in words is "eighteen billion, one hundred six million, two hundred sixty-three thousand, eight hundred twenty-three".