18797048663 has 2 divisors, whose sum is σ = 18797048664. Its totient is φ = 18797048662.

The previous prime is 18797048659. The next prime is 18797048713. The reversal of 18797048663 is 36684079781.

It is a weak prime.

It is an emirp because it is prime and its reverse (36684079781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18797048663 - 2² = 18797048659 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18797048603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398524331 + 9398524332.

It is an arithmetic number, because the mean of its divisors is an integer number (9398524332).

Almost surely, 2^18797048663 is an apocalyptic number.

18797048663 is a deficient number, since it is larger than the sum of its proper divisors (1).

18797048663 is an equidigital number, since it uses as much as digits as its factorization.

18797048663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 18797048663 in words is "eighteen billion, seven hundred ninety-seven million, forty-eight thousand, six hundred sixty-three".