12581968704 has 28 divisors (see below), whose sum is σ = 33289792704. Its totient is φ = 4193989504.

The previous prime is 12581968697. The next prime is 12581968709. The reversal of 12581968704 is 40786918521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12581968709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32765352 + ... + 32765735.

It is an arithmetic number, because the mean of its divisors is an integer number (1188921168).

Almost surely, 2^12581968704 is an apocalyptic number.

It is an amenable number.

12581968704 is an abundant number, since it is smaller than the sum of its proper divisors (20707824000).

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

12581968704 is an equidigital number, since it uses as much as digits as its factorization.

12581968704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65531102 (or 65531092 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 12581968704 in words is "twelve billion, five hundred eighty-one million, nine hundred sixty-eight thousand, seven hundred four".