98999999999989 has 16 divisors (see below), whose sum is σ = 108157392000000. Its totient is φ = 89868900087360.

The previous prime is 98999999999951. The next prime is 99000000000037.

98999999999989 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98999999999989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98999999979989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31500012 + ... + 34500010.

It is an arithmetic number, because the mean of its divisors is an integer number (6759837000000).

Almost surely, 2^{98999999999989} is an apocalyptic number.

It is an amenable number.

98999999999989 is a deficient number, since it is larger than the sum of its proper divisors (9157392000011).

98999999999989 is a wasteful number, since it uses less digits than its factorization.

98999999999989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004380.

The product of its digits is 18075490334784, while the sum is 124.

It can be divided in two parts, 9 and 8999999999989, that added together give a palindrome (8999999999998).

The spelling of 98999999999989 in words is "ninety-eight trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-nine".