8909001012 has 12 divisors (see below), whose sum is σ = 20787669056. Its totient is φ = 2969667000.

The previous prime is 8909000959. The next prime is 8909001077. The reversal of 8909001012 is 2101009098.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371208364 + ... + 371208387.

Almost surely, 2^8909001012 is an apocalyptic number.

It is an amenable number.

8909001012 is an abundant number, since it is smaller than the sum of its proper divisors (11878668044).

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

8909001012 is a wasteful number, since it uses less digits than its factorization.

8909001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742416758 (or 742416756 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 8909001012 is about 94387.5045331743. The cubic root of 8909001012 is about 2073.0494865353.

The spelling of 8909001012 in words is "eight billion, nine hundred nine million, one thousand, twelve".