12778876526276 has 48 divisors (see below), whose sum is σ = 26001877641600. Its totient is φ = 5381569974528.

The previous prime is 12778876526243. The next prime is 12778876526279. The reversal of 12778876526276 is 67262567887721.

It is not an unprimeable number, because it can be changed into a prime (12778876526279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2299670 + ... + 5553938.

It is an arithmetic number, because the mean of its divisors is an integer number (541705784200).

Almost surely, 2^{12778876526276} is an apocalyptic number.

It is an amenable number.

12778876526276 is an abundant number, since it is smaller than the sum of its proper divisors (13223001115324).

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

12778876526276 is a wasteful number, since it uses less digits than its factorization.

12778876526276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256716 (or 3256714 counting only the distinct ones).

The product of its digits is 1327656960, while the sum is 74.

The spelling of 12778876526276 in words is "twelve trillion, seven hundred seventy-eight billion, eight hundred seventy-six million, five hundred twenty-six thousand, two hundred seventy-six".