18000454723 has 2 divisors, whose sum is σ = 18000454724. Its totient is φ = 18000454722.

The previous prime is 18000454691. The next prime is 18000454751. The reversal of 18000454723 is 32745400081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18000454723 - 2⁵ = 18000454691 is a prime.

It is not a weakly prime, because it can be changed into another prime (18000454763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9000227361 + 9000227362.

It is an arithmetic number, because the mean of its divisors is an integer number (9000227362).

Almost surely, 2^18000454723 is an apocalyptic number.

18000454723 is a deficient number, since it is larger than the sum of its proper divisors (1).

18000454723 is an equidigital number, since it uses as much as digits as its factorization.

18000454723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 18000454723 in words is "eighteen billion, four hundred fifty-four thousand, seven hundred twenty-three".