99888888859 has 2 divisors, whose sum is σ = 99888888860. Its totient is φ = 99888888858.

The previous prime is 99888888857. The next prime is 99888888893. The reversal of 99888888859 is 95888888899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99888888859 - 2¹ = 99888888857 is a prime.

Together with 99888888857, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 99888888859.

It is not a weakly prime, because it can be changed into another prime (99888888857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49944444429 + 49944444430.

It is an arithmetic number, because the mean of its divisors is an integer number (49944444430).

Almost surely, 2^99888888859 is an apocalyptic number.

99888888859 is a deficient number, since it is larger than the sum of its proper divisors (1).

99888888859 is an equidigital number, since it uses as much as digits as its factorization.

99888888859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7644119040, while the sum is 88.

The spelling of 99888888859 in words is "ninety-nine billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-nine".