12544871928 has 32 divisors (see below), whose sum is σ = 32373864960. Its totient is φ = 4046732640.

The previous prime is 12544871921. The next prime is 12544871957. The reversal of 12544871928 is 82917844521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12544871921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8429950 + ... + 8431437.

It is an arithmetic number, because the mean of its divisors is an integer number (1011683280).

Almost surely, 2^12544871928 is an apocalyptic number.

It is an amenable number.

12544871928 is an abundant number, since it is smaller than the sum of its proper divisors (19828993032).

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

12544871928 is a wasteful number, since it uses less digits than its factorization.

12544871928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16861427 (or 16861423 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The spelling of 12544871928 in words is "twelve billion, five hundred forty-four million, eight hundred seventy-one thousand, nine hundred twenty-eight".