12628225720 has 64 divisors (see below), whose sum is σ = 31996477440. Its totient is φ = 4443945600.

The previous prime is 12628225717. The next prime is 12628225733. The reversal of 12628225720 is 2752282621.

It is a self number, because there is not a number n which added to its sum of digits gives 12628225720.

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, 449272 + ... + 476551.

It is an arithmetic number, because the mean of its divisors is an integer number (499944960).

Almost surely, 2^12628225720 is an apocalyptic number.

12628225720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12628225720 is an abundant number, since it is smaller than the sum of its proper divisors (19368251720).

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

12628225720 is a wasteful number, since it uses less digits than its factorization.

12628225720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925876 (or 925872 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 12628225720 in words is "twelve billion, six hundred twenty-eight million, two hundred twenty-five thousand, seven hundred twenty".