98609816485 has 4 divisors (see below), whose sum is σ = 118331779788. Its totient is φ = 78887853184.

The previous prime is 98609816467. The next prime is 98609816489. The reversal of 98609816485 is 58461890689.

It is a Cunningham number, because it is equal to 314022²+1.

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 35499835396 + 63109981089 = 188414^2 + 251217^2 .

It is a cyclic number.

It is not a de Polignac number, because 98609816485 - 2⁵ = 98609816453 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 (98609816489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9860981644 + ... + 9860981653.

It is an arithmetic number, because the mean of its divisors is an integer number (29582944947).

Almost surely, 2^98609816485 is an apocalyptic number.

It is an amenable number.

98609816485 is a deficient number, since it is larger than the sum of its proper divisors (19721963303).

98609816485 is a wasteful number, since it uses less digits than its factorization.

98609816485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19721963302.

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 98609816485 in words is "ninety-eight billion, six hundred nine million, eight hundred sixteen thousand, four hundred eighty-five".