8649000012 has 12 divisors (see below), whose sum is σ = 20181000056. Its totient is φ = 2883000000.

The previous prime is 8648999981. The next prime is 8649000023. The reversal of 8649000012 is 2100009468.

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

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, 360374989 + ... + 360375012.

Almost surely, 2^8649000012 is an apocalyptic number.

It is an amenable number.

8649000012 is an abundant number, since it is smaller than the sum of its proper divisors (11532000044).

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

8649000012 is a wasteful number, since it uses less digits than its factorization.

8649000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720750008 (or 720750006 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8649000012 is about 93000.0000645161. Note that the first 4 decimals coincide. The cubic root of 8649000012 is about 2052.6833796899.

The spelling of 8649000012 in words is "eight billion, six hundred forty-nine million, twelve", and thus it is an aban number.