8361956988 has 432 divisors, whose sum is σ = 28245305088. Its totient is φ = 2024870400.

The previous prime is 8361956963. The next prime is 8361956989. The reversal of 8361956988 is 8896591638.

8361956988 is a `hidden beast` number, since 8 + 3 + 61 + 9 + 569 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8361956989) 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 143 ways as a sum of consecutive naturals, for example, 114547320 + ... + 114547392.

Almost surely, 2^8361956988 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 8361956988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14122652544).

8361956988 is an abundant number, since it is smaller than the sum of its proper divisors (19883348100).

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

8361956988 is a wasteful number, since it uses less digits than its factorization.

8361956988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 170 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The square root of 8361956988 is about 91443.7367346720. The cubic root of 8361956988 is about 2029.7192771885.

The spelling of 8361956988 in words is "eight billion, three hundred sixty-one million, nine hundred fifty-six thousand, nine hundred eighty-eight".