8991045075 has 18 divisors (see below), whose sum is σ = 14866552324. Its totient is φ = 4794786080.

The previous prime is 8991045067. The next prime is 8991045097. The reversal of 8991045075 is 5705401998.

It is not a de Polignac number, because 8991045075 - 2³ = 8991045067 is a prime.

It is a Duffinian 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 17 ways as a sum of consecutive naturals, for example, 815701 + ... + 826649.

Almost surely, 2^8991045075 is an apocalyptic number.

8991045075 is a deficient number, since it is larger than the sum of its proper divisors (5875507249).

8991045075 is an frugal number, since it uses more digits than its factorization.

8991045075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911 (or 10957 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 8991045075 is about 94821.1214603582. The cubic root of 8991045075 is about 2079.3937054242.

Multiplying 8991045075 by its sum of digits (48), we get a square (431570163600 = 656940²).

The spelling of 8991045075 in words is "eight billion, nine hundred ninety-one million, forty-five thousand, seventy-five".