9847986156 has 216 divisors, whose sum is σ = 27356072016. Its totient is φ = 3094692480.

The previous prime is 9847986139. The next prime is 9847986209. The reversal of 9847986156 is 6516897489.

9847986156 is a `hidden beast` number, since 9 + 8 + 4 + 7 + 9 + 8 + 615 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 9847986093 and 9847986102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 146984835 + ... + 146984901.

Almost surely, 2^9847986156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9847986156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13678036008).

9847986156 is an abundant number, since it is smaller than the sum of its proper divisors (17508085860).

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

9847986156 is a wasteful number, since it uses less digits than its factorization.

9847986156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 170 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The square root of 9847986156 is about 99237.0200882715. The cubic root of 9847986156 is about 2143.4621046453.

The spelling of 9847986156 in words is "nine billion, eight hundred forty-seven million, nine hundred eighty-six thousand, one hundred fifty-six".