12772322276 has 48 divisors (see below), whose sum is σ = 26501529600. Its totient is φ = 5270585760.

The previous prime is 12772322261. The next prime is 12772322327. The reversal of 12772322276 is 67222327721.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135761 + ... + 209703.

It is an arithmetic number, because the mean of its divisors is an integer number (552115200).

Almost surely, 2^12772322276 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 12772322276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13250764800).

12772322276 is an abundant number, since it is smaller than the sum of its proper divisors (13729207324).

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

12772322276 is a wasteful number, since it uses less digits than its factorization.

12772322276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74184 (or 74182 counting only the distinct ones).

The product of its digits is 197568, while the sum is 41.

Adding to 12772322276 its reverse (67222327721), we get a palindrome (79994649997).

Subtracting 12772322276 from its reverse (67222327721), we obtain a palindrome (54450005445).

The spelling of 12772322276 in words is "twelve billion, seven hundred seventy-two million, three hundred twenty-two thousand, two hundred seventy-six".