18619027799 has 2 divisors, whose sum is σ = 18619027800. Its totient is φ = 18619027798.

The previous prime is 18619027771. The next prime is 18619027849. The reversal of 18619027799 is 99772091681.

It is a weak prime.

It is an emirp because it is prime and its reverse (99772091681) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18619027799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18619020799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9309513899 + 9309513900.

It is an arithmetic number, because the mean of its divisors is an integer number (9309513900).

Almost surely, 2^18619027799 is an apocalyptic number.

18619027799 is a deficient number, since it is larger than the sum of its proper divisors (1).

18619027799 is an equidigital number, since it uses as much as digits as its factorization.

18619027799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3429216, while the sum is 59.

The spelling of 18619027799 in words is "eighteen billion, six hundred nineteen million, twenty-seven thousand, seven hundred ninety-nine".