18739114663 has 2 divisors, whose sum is σ = 18739114664. Its totient is φ = 18739114662.

The previous prime is 18739114627. The next prime is 18739114697. The reversal of 18739114663 is 36641193781.

It is a strong prime.

It is an emirp because it is prime and its reverse (36641193781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18739114663 - 2²¹ = 18737017511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18739112663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9369557331 + 9369557332.

It is an arithmetic number, because the mean of its divisors is an integer number (9369557332).

Almost surely, 2^18739114663 is an apocalyptic number.

18739114663 is a deficient number, since it is larger than the sum of its proper divisors (1).

18739114663 is an equidigital number, since it uses as much as digits as its factorization.

18739114663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The spelling of 18739114663 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, six hundred sixty-three".