12804280336 has 15 divisors (see below), whose sum is σ = 24809170141. Its totient is φ = 6401913856.

The previous prime is 12804280277. The next prime is 12804280339. The reversal of 12804280336 is 63308240821.

The square root of 12804280336 is 113156.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12090321936 + 713958400 = 109956^2 + 26720^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12804280295 and 12804280304.

It is not an unprimeable number, because it can be changed into a prime (12804280339) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 438480 + ... + 466768.

Almost surely, 2^12804280336 is an apocalyptic number.

12804280336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

12804280336 is the 113156-th square number.

It is an amenable number.

12804280336 is a deficient number, since it is larger than the sum of its proper divisors (12004889805).

12804280336 is an frugal number, since it uses more digits than its factorization.

12804280336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56586 (or 28291 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 12804280336 in words is "twelve billion, eight hundred four million, two hundred eighty thousand, three hundred thirty-six".