18326895047 has 2 divisors, whose sum is σ = 18326895048. Its totient is φ = 18326895046.

The previous prime is 18326895043. The next prime is 18326895127. The reversal of 18326895047 is 74059862381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18326895047 - 2² = 18326895043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18326895047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18326895043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9163447523 + 9163447524.

It is an arithmetic number, because the mean of its divisors is an integer number (9163447524).

It is a 1-persistent number, because it is pandigital, but 2⋅18326895047 = 36653790094 is not.

Almost surely, 2^18326895047 is an apocalyptic number.

18326895047 is a deficient number, since it is larger than the sum of its proper divisors (1).

18326895047 is an equidigital number, since it uses as much as digits as its factorization.

18326895047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 18326895047 in words is "eighteen billion, three hundred twenty-six million, eight hundred ninety-five thousand, forty-seven".