12908857653 has 24 divisors (see below), whose sum is σ = 19960502016. Its totient is φ = 8328290400.

The previous prime is 12908857651. The next prime is 12908857729. The reversal of 12908857653 is 35675880921.

12908857653 is a `hidden beast` number, since 12 + 9 + 0 + 8 + 8 + 576 + 53 = 666.

It is not a de Polignac number, because 12908857653 - 2¹ = 12908857651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12908857653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12908857651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849288 + ... + 864353.

It is an arithmetic number, because the mean of its divisors is an integer number (831687584).

Almost surely, 2^12908857653 is an apocalyptic number.

It is an amenable number.

12908857653 is a deficient number, since it is larger than the sum of its proper divisors (7051644363).

12908857653 is an equidigital number, since it uses as much as digits as its factorization.

12908857653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713687 (or 1713675 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 12908857653 in words is "twelve billion, nine hundred eight million, eight hundred fifty-seven thousand, six hundred fifty-three".