998698896899 has 16 divisors (see below), whose sum is σ = 1091751423840. Its totient is φ = 906024096000.

The previous prime is 998698896859. The next prime is 998698896901.

998698896899 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 998698896899 - 2¹² = 998698892803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (998698896859) 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 in 15 ways as a sum of consecutive naturals, for example, 30220517 + ... + 30253545.

It is an arithmetic number, because the mean of its divisors is an integer number (68234463990).

Almost surely, 2^998698896899 is an apocalyptic number.

998698896899 is a deficient number, since it is larger than the sum of its proper divisors (93052526941).

998698896899 is a wasteful number, since it uses less digits than its factorization.

998698896899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38662.

The product of its digits is 78364164096, while the sum is 98.

The spelling of 998698896899 in words is "nine hundred ninety-eight billion, six hundred ninety-eight million, eight hundred ninety-six thousand, eight hundred ninety-nine".