12842782276 has 9 divisors (see below), whose sum is σ = 22475265631. Its totient is φ = 6421277812.

The previous prime is 12842782261. The next prime is 12842782279. The reversal of 12842782276 is 67228724821.

The square root of 12842782276 is 113326.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12842782279) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 198321 + ... + 254983.

Almost surely, 2^12842782276 is an apocalyptic number.

12842782276 is the 113326-th square number.

It is an amenable number.

12842782276 is a deficient number, since it is larger than the sum of its proper divisors (9632483355).

12842782276 is an frugal number, since it uses more digits than its factorization.

12842782276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113330 (or 56665 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 49.

Multiplying 12842782276 by its sum of digits (49), we get a square (629296331524 = 793282²).

The spelling of 12842782276 in words is "twelve billion, eight hundred forty-two million, seven hundred eighty-two thousand, two hundred seventy-six".