12753521544 has 64 divisors (see below), whose sum is σ = 34034688000. Its totient is φ = 3970693440.

The previous prime is 12753521531. The next prime is 12753521549. The reversal of 12753521544 is 44512535721.

It is not an unprimeable number, because it can be changed into a prime (12753521549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164584 + ... + 229335.

It is an arithmetic number, because the mean of its divisors is an integer number (531792000).

Almost surely, 2^12753521544 is an apocalyptic number.

It is an amenable number.

12753521544 is an abundant number, since it is smaller than the sum of its proper divisors (21281166456).

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

12753521544 is a wasteful number, since it uses less digits than its factorization.

12753521544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394018 (or 394014 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The spelling of 12753521544 in words is "twelve billion, seven hundred fifty-three million, five hundred twenty-one thousand, five hundred forty-four".