12782628276 has 108 divisors (see below), whose sum is σ = 33150273408. Its totient is φ = 3830728000.

The previous prime is 12782628251. The next prime is 12782628277. The reversal of 12782628276 is 67282628721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12782628277) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14811421 + ... + 14812283.

It is an arithmetic number, because the mean of its divisors is an integer number (306946976).

Almost surely, 2^12782628276 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 12782628276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16575136704).

12782628276 is an abundant number, since it is smaller than the sum of its proper divisors (20367645132).

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

12782628276 is a wasteful number, since it uses less digits than its factorization.

12782628276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 980 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The spelling of 12782628276 in words is "twelve billion, seven hundred eighty-two million, six hundred twenty-eight thousand, two hundred seventy-six".