98995659989 has 4 divisors (see below), whose sum is σ = 104818934124. Its totient is φ = 93172385856.

The previous prime is 98995659979. The next prime is 98995660007.

It is a happy number.

98995659989 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64340859025 + 34654800964 = 253655^2 + 186158^2 .

It is a cyclic number.

It is not a de Polignac number, because 98995659989 - 2¹² = 98995655893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 98995659989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98995659979) 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 3 ways as a sum of consecutive naturals, for example, 2911637042 + ... + 2911637075.

It is an arithmetic number, because the mean of its divisors is an integer number (26204733531).

Almost surely, 2^98995659989 is an apocalyptic number.

It is an amenable number.

98995659989 is a deficient number, since it is larger than the sum of its proper divisors (5823274135).

98995659989 is a wasteful number, since it uses less digits than its factorization.

98995659989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823274134.

The product of its digits is 5101833600, while the sum is 86.

The spelling of 98995659989 in words is "ninety-eight billion, nine hundred ninety-five million, six hundred fifty-nine thousand, nine hundred eighty-nine".