986385872687668 has 6 divisors (see below), whose sum is σ = 1726175277203426. Its totient is φ = 493192936343832.

The previous prime is 986385872687627. The next prime is 986385872687741. The reversal of 986385872687668 is 866786278583689.

It can be written as a sum of positive squares in only one way, i.e., 938502489760144 + 47883382927524 = 30634988^2 + 6919782^2 .

It is a super-3 number, since 3×986385872687668³ (a number of 46 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 986385872687668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123298234085955 + ... + 123298234085962.

Almost surely, 2^{986385872687668} is an apocalyptic number.

It is an amenable number.

986385872687668 is a deficient number, since it is larger than the sum of its proper divisors (739789404515758).

986385872687668 is a wasteful number, since it uses less digits than its factorization.

986385872687668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246596468171921 (or 246596468171919 counting only the distinct ones).

The product of its digits is 561842749440, while the sum is 97.

The spelling of 986385872687668 in words is "nine hundred eighty-six trillion, three hundred eighty-five billion, eight hundred seventy-two million, six hundred eighty-seven thousand, six hundred sixty-eight".