18017472911 has 2 divisors, whose sum is σ = 18017472912. Its totient is φ = 18017472910.

The previous prime is 18017472877. The next prime is 18017473031. The reversal of 18017472911 is 11927471081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18017472911 - 2¹⁰ = 18017471887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18017472511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9008736455 + 9008736456.

It is an arithmetic number, because the mean of its divisors is an integer number (9008736456).

Almost surely, 2^18017472911 is an apocalyptic number.

18017472911 is a deficient number, since it is larger than the sum of its proper divisors (1).

18017472911 is an equidigital number, since it uses as much as digits as its factorization.

18017472911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 41.

The spelling of 18017472911 in words is "eighteen billion, seventeen million, four hundred seventy-two thousand, nine hundred eleven".