12724266580 has 24 divisors (see below), whose sum is σ = 26761907592. Its totient is φ = 5081907072.

The previous prime is 12724266547. The next prime is 12724266587. The reversal of 12724266580 is 8566242721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1676574916 + 11047691664 = 40946^2 + 105108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724266587) 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 7 ways as a sum of consecutive naturals, for example, 474087 + ... + 500206.

It is an arithmetic number, because the mean of its divisors is an integer number (1115079483).

Almost surely, 2^12724266580 is an apocalyptic number.

12724266580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12724266580 is an abundant number, since it is smaller than the sum of its proper divisors (14037641012).

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

12724266580 is a wasteful number, since it uses less digits than its factorization.

12724266580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974955 (or 974953 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 12724266580 in words is "twelve billion, seven hundred twenty-four million, two hundred sixty-six thousand, five hundred eighty".