18108284699 has 2 divisors, whose sum is σ = 18108284700. Its totient is φ = 18108284698.

The previous prime is 18108284687. The next prime is 18108284731. The reversal of 18108284699 is 99648280181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18108284699 - 2²⁰ = 18107236123 is a prime.

It is not a weakly prime, because it can be changed into another prime (18108280699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9054142349 + 9054142350.

It is an arithmetic number, because the mean of its divisors is an integer number (9054142350).

Almost surely, 2^18108284699 is an apocalyptic number.

18108284699 is a deficient number, since it is larger than the sum of its proper divisors (1).

18108284699 is an equidigital number, since it uses as much as digits as its factorization.

18108284699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 18108284699 in words is "eighteen billion, one hundred eight million, two hundred eighty-four thousand, six hundred ninety-nine".