18984482899 has 2 divisors, whose sum is σ = 18984482900. Its totient is φ = 18984482898.

The previous prime is 18984482873. The next prime is 18984482971. The reversal of 18984482899 is 99828448981.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18984482899 - 2¹⁵ = 18984450131 is a prime.

It is not a weakly prime, because it can be changed into another prime (18984482819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9492241449 + 9492241450.

It is an arithmetic number, because the mean of its divisors is an integer number (9492241450).

Almost surely, 2^18984482899 is an apocalyptic number.

18984482899 is a deficient number, since it is larger than the sum of its proper divisors (1).

18984482899 is an equidigital number, since it uses as much as digits as its factorization.

18984482899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95551488, while the sum is 70.

The spelling of 18984482899 in words is "eighteen billion, nine hundred eighty-four million, four hundred eighty-two thousand, eight hundred ninety-nine".