12804043956 has 48 divisors (see below), whose sum is σ = 33643481088. Its totient is φ = 3754850400.

The previous prime is 12804043939. The next prime is 12804043961. The reversal of 12804043956 is 65934040821.

12804043956 is a modest number, since divided by 43956 gives 12804 as remainder.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1560430 + ... + 1568613.

It is an arithmetic number, because the mean of its divisors is an integer number (700905856).

Almost surely, 2^12804043956 is an apocalyptic number.

It is an amenable number.

12804043956 is an abundant number, since it is smaller than the sum of its proper divisors (20839437132).

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

12804043956 is a wasteful number, since it uses less digits than its factorization.

12804043956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129092 (or 3129090 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 12804043956 in words is "twelve billion, eight hundred four million, forty-three thousand, nine hundred fifty-six".