12642780304 has 80 divisors (see below), whose sum is σ = 30656609280. Its totient is φ = 4906903680.

The previous prime is 12642780299. The next prime is 12642780383. The reversal of 12642780304 is 40308724621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304507 + ... + 343525.

It is an arithmetic number, because the mean of its divisors is an integer number (383207616).

Almost surely, 2^12642780304 is an apocalyptic number.

12642780304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12642780304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15328304640).

12642780304 is an abundant number, since it is smaller than the sum of its proper divisors (18013828976).

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

12642780304 is a wasteful number, since it uses less digits than its factorization.

12642780304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39308 (or 39302 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 12642780304 in words is "twelve billion, six hundred forty-two million, seven hundred eighty thousand, three hundred four".