12766507652 has 6 divisors (see below), whose sum is σ = 22341388398. Its totient is φ = 6383253824.

The previous prime is 12766507643. The next prime is 12766507669. The reversal of 12766507652 is 25670566721.

12766507652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6734500096 + 6032007556 = 82064^2 + 77666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12766507597 and 12766507606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595813453 + ... + 1595813460.

It is an arithmetic number, because the mean of its divisors is an integer number (3723564733).

Almost surely, 2^12766507652 is an apocalyptic number.

It is an amenable number.

12766507652 is a deficient number, since it is larger than the sum of its proper divisors (9574880746).

12766507652 is a wasteful number, since it uses less digits than its factorization.

12766507652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3191626917 (or 3191626915 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 12766507652 in words is "twelve billion, seven hundred sixty-six million, five hundred seven thousand, six hundred fifty-two".