12605645004 has 12 divisors (see below), whose sum is σ = 29413171704. Its totient is φ = 4201881664.

The previous prime is 12605644963. The next prime is 12605645047. The reversal of 12605645004 is 40054650621.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525235197 + ... + 525235220.

It is an arithmetic number, because the mean of its divisors is an integer number (2451097642).

Almost surely, 2^12605645004 is an apocalyptic number.

It is an amenable number.

12605645004 is an abundant number, since it is smaller than the sum of its proper divisors (16807526700).

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

12605645004 is a wasteful number, since it uses less digits than its factorization.

12605645004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050470424 (or 1050470422 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 12605645004 in words is "twelve billion, six hundred five million, six hundred forty-five thousand, four".