12826952660 has 12 divisors (see below), whose sum is σ = 26936600628. Its totient is φ = 5130781056.

The previous prime is 12826952657. The next prime is 12826952683. The reversal of 12826952660 is 6625962821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5397547024 + 7429405636 = 73468^2 + 86194^2 .

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 3 ways as a sum of consecutive naturals, for example, 320673797 + ... + 320673836.

It is an arithmetic number, because the mean of its divisors is an integer number (2244716719).

Almost surely, 2^12826952660 is an apocalyptic number.

12826952660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12826952660 is an abundant number, since it is smaller than the sum of its proper divisors (14109647968).

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

12826952660 is a wasteful number, since it uses less digits than its factorization.

12826952660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641347642 (or 641347640 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 12826952660 in words is "twelve billion, eight hundred twenty-six million, nine hundred fifty-two thousand, six hundred sixty".