18484868063 has 2 divisors, whose sum is σ = 18484868064. Its totient is φ = 18484868062.

The previous prime is 18484868021. The next prime is 18484868069. The reversal of 18484868063 is 36086848481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18484868063 - 2¹⁰ = 18484867039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18484868069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9242434031 + 9242434032.

It is an arithmetic number, because the mean of its divisors is an integer number (9242434032).

Almost surely, 2^18484868063 is an apocalyptic number.

18484868063 is a deficient number, since it is larger than the sum of its proper divisors (1).

18484868063 is an equidigital number, since it uses as much as digits as its factorization.

18484868063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 18484868063 in words is "eighteen billion, four hundred eighty-four million, eight hundred sixty-eight thousand, sixty-three".