12936787977228 has 96 divisors (see below), whose sum is σ = 30631503490560. Its totient is φ = 4249056967680.

The previous prime is 12936787977227. The next prime is 12936787977233. The reversal of 12936787977228 is 82277978763921.

It is not an unprimeable number, because it can be changed into a prime (12936787977221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1667752726 + ... + 1667760482.

It is an arithmetic number, because the mean of its divisors is an integer number (319078161360).

Almost surely, 2^{12936787977228} is an apocalyptic number.

It is an amenable number.

12936787977228 is an abundant number, since it is smaller than the sum of its proper divisors (17694715513332).

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

12936787977228 is a wasteful number, since it uses less digits than its factorization.

12936787977228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14927 (or 14925 counting only the distinct ones).

The product of its digits is 1792336896, while the sum is 78.

The spelling of 12936787977228 in words is "twelve trillion, nine hundred thirty-six billion, seven hundred eighty-seven million, nine hundred seventy-seven thousand, two hundred twenty-eight".