18254712017 has 2 divisors, whose sum is σ = 18254712018. Its totient is φ = 18254712016.

The previous prime is 18254712011. The next prime is 18254712139. The reversal of 18254712017 is 71021745281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9872210881 + 8382501136 = 99359^2 + 91556^2 .

It is a cyclic number.

It is not a de Polignac number, because 18254712017 - 2¹⁶ = 18254646481 is a prime.

It is not a weakly prime, because it can be changed into another prime (18254712011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9127356008 + 9127356009.

It is an arithmetic number, because the mean of its divisors is an integer number (9127356009).

Almost surely, 2^18254712017 is an apocalyptic number.

It is an amenable number.

18254712017 is a deficient number, since it is larger than the sum of its proper divisors (1).

18254712017 is an equidigital number, since it uses as much as digits as its factorization.

18254712017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 38.

The spelling of 18254712017 in words is "eighteen billion, two hundred fifty-four million, seven hundred twelve thousand, seventeen".