18045328771 has 2 divisors, whose sum is σ = 18045328772. Its totient is φ = 18045328770.

The previous prime is 18045328739. The next prime is 18045328783. The reversal of 18045328771 is 17782354081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18045328771 - 2⁵ = 18045328739 is a prime.

It is not a weakly prime, because it can be changed into another prime (18045328471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9022664385 + 9022664386.

It is an arithmetic number, because the mean of its divisors is an integer number (9022664386).

Almost surely, 2^18045328771 is an apocalyptic number.

18045328771 is a deficient number, since it is larger than the sum of its proper divisors (1).

18045328771 is an equidigital number, since it uses as much as digits as its factorization.

18045328771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 18045328771 in words is "eighteen billion, forty-five million, three hundred twenty-eight thousand, seven hundred seventy-one".