12627660636 has 72 divisors (see below), whose sum is σ = 32204075904. Its totient is φ = 4171833120.

The previous prime is 12627660631. The next prime is 12627660659. The reversal of 12627660636 is 63606672621.

12627660636 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 7 + 6 + 6 + 0 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12627660591 and 12627660600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12627660631) 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 23 ways as a sum of consecutive naturals, for example, 6049585 + ... + 6051671.

It is an arithmetic number, because the mean of its divisors is an integer number (447278832).

Almost surely, 2^12627660636 is an apocalyptic number.

It is an amenable number.

12627660636 is an abundant number, since it is smaller than the sum of its proper divisors (19576415268).

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

12627660636 is a wasteful number, since it uses less digits than its factorization.

12627660636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511 (or 3506 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 12627660636 in words is "twelve billion, six hundred twenty-seven million, six hundred sixty thousand, six hundred thirty-six".