12724516808 has 16 divisors (see below), whose sum is σ = 23859738060. Its totient is φ = 6361920000.

The previous prime is 12724516801. The next prime is 12724516859. The reversal of 12724516808 is 80861542721.

It is a Cunningham number, because it is equal to 112803²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 12436264324 + 288252484 = 111518^2 + 16978^2 .

It is not an unprimeable number, because it can be changed into a prime (12724516801) by changing a digit.

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, 197408 + ... + 253808.

Almost surely, 2^12724516808 is an apocalyptic number.

It is an amenable number.

12724516808 is a deficient number, since it is larger than the sum of its proper divisors (11135221252).

12724516808 is a wasteful number, since it uses less digits than its factorization.

12724516808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84608 (or 84604 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 12724516808 in words is "twelve billion, seven hundred twenty-four million, five hundred sixteen thousand, eight hundred eight".