12821976134 has 32 divisors (see below), whose sum is σ = 21545865216. Its totient is φ = 5673114720.

The previous prime is 12821976073. The next prime is 12821976151. The reversal of 12821976134 is 43167912821.

It is a congruent number.

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, 104789 + ... + 191375.

It is an arithmetic number, because the mean of its divisors is an integer number (673308288).

Almost surely, 2^12821976134 is an apocalyptic number.

12821976134 is a deficient number, since it is larger than the sum of its proper divisors (8723889082).

12821976134 is a wasteful number, since it uses less digits than its factorization.

12821976134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86780.

The product of its digits is 145152, while the sum is 44.

The spelling of 12821976134 in words is "twelve billion, eight hundred twenty-one million, nine hundred seventy-six thousand, one hundred thirty-four".