12556828624 has 10 divisors (see below), whose sum is σ = 24328855490. Its totient is φ = 6278414304.

The previous prime is 12556828607. The next prime is 12556828681. The reversal of 12556828624 is 42682865521.

It can be written as a sum of positive squares in only one way, i.e., 11972736400 + 584092224 = 109420^2 + 24168^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392400879 + ... + 392400910.

It is an arithmetic number, because the mean of its divisors is an integer number (2432885549).

Almost surely, 2^12556828624 is an apocalyptic number.

It is an amenable number.

12556828624 is a deficient number, since it is larger than the sum of its proper divisors (11772026866).

12556828624 is an equidigital number, since it uses as much as digits as its factorization.

12556828624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784801797 (or 784801791 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 49.

The spelling of 12556828624 in words is "twelve billion, five hundred fifty-six million, eight hundred twenty-eight thousand, six hundred twenty-four".