999998884499 has 2 divisors, whose sum is σ = 999998884500. Its totient is φ = 999998884498.

The previous prime is 999998884477. The next prime is 999998884531. The reversal of 999998884499 is 994488899999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999998884499 - 2²⁸ = 999730449043 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (999998884439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999442249 + 499999442250.

It is an arithmetic number, because the mean of its divisors is an integer number (499999442250).

Almost surely, 2^999998884499 is an apocalyptic number.

999998884499 is a deficient number, since it is larger than the sum of its proper divisors (1).

999998884499 is an equidigital number, since it uses as much as digits as its factorization.

999998884499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39182082048, while the sum is 95.

The spelling of 999998884499 in words is "nine hundred ninety-nine billion, nine hundred ninety-eight million, eight hundred eighty-four thousand, four hundred ninety-nine".