12788328624 has 80 divisors (see below), whose sum is σ = 34495982592. Its totient is φ = 4074706944.

The previous prime is 12788328577. The next prime is 12788328629. The reversal of 12788328624 is 42682388721.

It is not an unprimeable number, because it can be changed into a prime (12788328629) 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, 2223897 + ... + 2229639.

Almost surely, 2^12788328624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12788328624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17247991296).

12788328624 is an abundant number, since it is smaller than the sum of its proper divisors (21707653968).

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

12788328624 is a wasteful number, since it uses less digits than its factorization.

12788328624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794 (or 7788 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The spelling of 12788328624 in words is "twelve billion, seven hundred eighty-eight million, three hundred twenty-eight thousand, six hundred twenty-four".