12726582651 has 48 divisors (see below), whose sum is σ = 19271935200. Its totient is φ = 8299542528.

The previous prime is 12726582637. The next prime is 12726582667. The reversal of 12726582651 is 15628562721.

12726582651 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 6 + 582 + 65 + 1 = 666.

It is not a de Polignac number, because 12726582651 - 2⁶ = 12726582587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12726582597 and 12726582606.

It is not an unprimeable number, because it can be changed into a prime (12726582601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31116135 + ... + 31116543.

It is an arithmetic number, because the mean of its divisors is an integer number (401498650).

Almost surely, 2^12726582651 is an apocalyptic number.

12726582651 is a deficient number, since it is larger than the sum of its proper divisors (6545352549).

12726582651 is an equidigital number, since it uses as much as digits as its factorization.

12726582651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 618 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The spelling of 12726582651 in words is "twelve billion, seven hundred twenty-six million, five hundred eighty-two thousand, six hundred fifty-one".