98409683989 has 4 divisors (see below), whose sum is σ = 98625022924. Its totient is φ = 98194345056.

The previous prime is 98409683987. The next prime is 98409684013. The reversal of 98409683989 is 98938690489.

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 35938680625 + 62471003364 = 189575^2 + 249942^2 .

It is a cyclic number.

It is not a de Polignac number, because 98409683989 - 2¹ = 98409683987 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 (98409683987) 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, 107668782 + ... + 107669695.

It is an arithmetic number, because the mean of its divisors is an integer number (24656255731).

Almost surely, 2^98409683989 is an apocalyptic number.

It is an amenable number.

98409683989 is a deficient number, since it is larger than the sum of its proper divisors (215338935).

98409683989 is a wasteful number, since it uses less digits than its factorization.

98409683989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215338934.

The product of its (nonzero) digits is 241864704, while the sum is 73.

The spelling of 98409683989 in words is "ninety-eight billion, four hundred nine million, six hundred eighty-three thousand, nine hundred eighty-nine".