9986456512 has 14 divisors (see below), whose sum is σ = 19816874768. Its totient is φ = 4993228224.

The previous prime is 9986456479. The next prime is 9986456527. The reversal of 9986456512 is 2156546899.

9986456512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9986456512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78019128 + ... + 78019255.

Almost surely, 2^9986456512 is an apocalyptic number.

It is an amenable number.

9986456512 is a deficient number, since it is larger than the sum of its proper divisors (9830418256).

9986456512 is a wasteful number, since it uses less digits than its factorization.

9986456512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156038395 (or 156038385 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 55.

The square root of 9986456512 is about 99932.2596162020. The cubic root of 9986456512 is about 2153.4616319339.

The spelling of 9986456512 in words is "nine billion, nine hundred eighty-six million, four hundred fifty-six thousand, five hundred twelve".