9886131985284 has 45 divisors (see below), whose sum is σ = 25844449779687. Its totient is φ = 3295358463096.

The previous prime is 9886131985237. The next prime is 9886131985297. The reversal of 9886131985284 is 4825891316889.

The square root of 9886131985284 is 3144222.

It is a perfect power (a square), and thus also a powerful number.

9886131985284 is a `hidden beast` number, since 9 + 8 + 8 + 6 + 1 + 3 + 1 + 98 + 528 + 4 = 666.

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 in 14 ways as a sum of consecutive naturals, for example, 56508657 + ... + 56683335.

Almost surely, 2^{9886131985284} is an apocalyptic number.

9886131985284 is the 3144222-nd square number.

It is an amenable number.

9886131985284 is an abundant number, since it is smaller than the sum of its proper divisors (15958317794403).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9886131985284 is an frugal number, since it uses more digits than its factorization.

9886131985284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349374 (or 174684 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 72.

The spelling of 9886131985284 in words is "nine trillion, eight hundred eighty-six billion, one hundred thirty-one million, nine hundred eighty-five thousand, two hundred eighty-four".