99988688999 has 2 divisors, whose sum is σ = 99988689000. Its totient is φ = 99988688998.

The previous prime is 99988688993. The next prime is 99988689043.

99988688999 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99988688999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99988688993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49994344499 + 49994344500.

It is an arithmetic number, because the mean of its divisors is an integer number (49994344500).

Almost surely, 2^99988688999 is an apocalyptic number.

99988688999 is a deficient number, since it is larger than the sum of its proper divisors (1).

99988688999 is an equidigital number, since it uses as much as digits as its factorization.

99988688999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13060694016, while the sum is 92.

The spelling of 99988688999 in words is "ninety-nine billion, nine hundred eighty-eight million, six hundred eighty-eight thousand, nine hundred ninety-nine".