8995978992 has 320 divisors, whose sum is σ = 31847961600. Its totient is φ = 2156313600.

The previous prime is 8995978991. The next prime is 8995978993. The reversal of 8995978992 is 2998795998.

8995978992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8995978991) and next prime (8995978993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8995978991) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 2352442 + ... + 2356262.

It is an arithmetic number, because the mean of its divisors is an integer number (99524880).

Almost surely, 2^8995978992 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 8995978992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15923980800).

8995978992 is an abundant number, since it is smaller than the sum of its proper divisors (22851982608).

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

8995978992 is a wasteful number, since it uses less digits than its factorization.

8995978992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877 (or 3857 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 75.

The square root of 8995978992 is about 94847.1348644755. The cubic root of 8995978992 is about 2079.7739978806.

The spelling of 8995978992 in words is "eight billion, nine hundred ninety-five million, nine hundred seventy-eight thousand, nine hundred ninety-two".