8991104992 has 36 divisors (see below), whose sum is σ = 17788345848. Its totient is φ = 4473537600.

The previous prime is 8991104981. The next prime is 8991105001. The reversal of 8991104992 is 2994011998.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1421517 + ... + 1427827.

It is an arithmetic number, because the mean of its divisors is an integer number (494120718).

Almost surely, 2^8991104992 is an apocalyptic number.

It is an amenable number.

8991104992 is a deficient number, since it is larger than the sum of its proper divisors (8797240856).

8991104992 is an equidigital number, since it uses as much as digits as its factorization.

8991104992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743 (or 6524 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 52.

The square root of 8991104992 is about 94821.4374073711. The cubic root of 8991104992 is about 2079.3983244926.

The spelling of 8991104992 in words is "eight billion, nine hundred ninety-one million, one hundred four thousand, nine hundred ninety-two".