12753257643 has 72 divisors (see below), whose sum is σ = 21970271232. Its totient is φ = 6981619392.

The previous prime is 12753257609. The next prime is 12753257663. The reversal of 12753257643 is 34675235721.

12753257643 is a `hidden beast` number, since 1 + 2 + 7 + 5 + 32 + 576 + 43 = 666.

12753257643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12753257643 - 2⁶ = 12753257579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12753257663) by changing a digit.

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 in 71 ways as a sum of consecutive naturals, for example, 5777446 + ... + 5779652.

It is an arithmetic number, because the mean of its divisors is an integer number (305142656).

Almost surely, 2^12753257643 is an apocalyptic number.

12753257643 is a deficient number, since it is larger than the sum of its proper divisors (9217013589).

12753257643 is a wasteful number, since it uses less digits than its factorization.

12753257643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361 (or 2321 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The spelling of 12753257643 in words is "twelve billion, seven hundred fifty-three million, two hundred fifty-seven thousand, six hundred forty-three".