986689986689 has 32 divisors (see below), whose sum is σ = 1144617333120. Its totient is φ = 841104000000.

The previous prime is 986689986683. The next prime is 986689986721.

986689986689 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-986689986689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 986689986598 and 986689986607.

It is not an unprimeable number, because it can be changed into a prime (986689986683) 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 31 ways as a sum of consecutive naturals, for example, 99650639 + ... + 99660539.

It is an arithmetic number, because the mean of its divisors is an integer number (35769291660).

Almost surely, 2^986689986689 is an apocalyptic number.

It is an amenable number.

986689986689 is a deficient number, since it is larger than the sum of its proper divisors (157927346431).

986689986689 is a wasteful number, since it uses less digits than its factorization.

986689986689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14753.

The product of its digits is 34828517376, while the sum is 92.

The spelling of 986689986689 in words is "nine hundred eighty-six billion, six hundred eighty-nine million, nine hundred eighty-six thousand, six hundred eighty-nine".