98656865689 has 4 divisors (see below), whose sum is σ = 102946294656. Its totient is φ = 94367436724.

The previous prime is 98656865677. The next prime is 98656865707.

98656865689 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98656865689 is a prime.

It is a super-3 number, since 3×98656865689³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98656860689) 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, 2144714449 + ... + 2144714494.

It is an arithmetic number, because the mean of its divisors is an integer number (25736573664).

Almost surely, 2^98656865689 is an apocalyptic number.

It is an amenable number.

98656865689 is a deficient number, since it is larger than the sum of its proper divisors (4289428967).

98656865689 is a wasteful number, since it uses less digits than its factorization.

98656865689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289428966.

The product of its digits is 1343692800, while the sum is 76.

The spelling of 98656865689 in words is "ninety-eight billion, six hundred fifty-six million, eight hundred sixty-five thousand, six hundred eighty-nine".