12865481304 has 32 divisors (see below), whose sum is σ = 34637835120. Its totient is φ = 3958609536.

The previous prime is 12865481297. The next prime is 12865481327. The reversal of 12865481304 is 40318456821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20617447 + ... + 20618070.

Almost surely, 2^12865481304 is an apocalyptic number.

It is an amenable number.

12865481304 is an abundant number, since it is smaller than the sum of its proper divisors (21772353816).

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

12865481304 is a wasteful number, since it uses less digits than its factorization.

12865481304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41235539 (or 41235535 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 12865481304 in words is "twelve billion, eight hundred sixty-five million, four hundred eighty-one thousand, three hundred four".