12960440928 has 36 divisors (see below), whose sum is σ = 36856254708. Its totient is φ = 4320146880.

The previous prime is 12960440923. The next prime is 12960440957. The reversal of 12960440928 is 82904406921.

12960440928 is a `hidden beast` number, since 12 + 9 + 604 + 4 + 0 + 9 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12960440923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22500478 + ... + 22501053.

It is an arithmetic number, because the mean of its divisors is an integer number (1023784853).

Almost surely, 2^12960440928 is an apocalyptic number.

12960440928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12960440928 is an abundant number, since it is smaller than the sum of its proper divisors (23895813780).

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

12960440928 is a wasteful number, since it uses less digits than its factorization.

12960440928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45001547 (or 45001536 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 12960440928 in words is "twelve billion, nine hundred sixty million, four hundred forty thousand, nine hundred twenty-eight".