18993004711 has 2 divisors, whose sum is σ = 18993004712. Its totient is φ = 18993004710.

The previous prime is 18993004703. The next prime is 18993004729. The reversal of 18993004711 is 11740039981.

It is a weak prime.

It is an emirp because it is prime and its reverse (11740039981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18993004711 - 2³ = 18993004703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18993004111) 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, 9496502355 + 9496502356.

It is an arithmetic number, because the mean of its divisors is an integer number (9496502356).

Almost surely, 2^18993004711 is an apocalyptic number.

18993004711 is a deficient number, since it is larger than the sum of its proper divisors (1).

18993004711 is an equidigital number, since it uses as much as digits as its factorization.

18993004711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 18993004711 in words is "eighteen billion, nine hundred ninety-three million, four thousand, seven hundred eleven".