12781112176 has 60 divisors (see below), whose sum is σ = 30500936208. Its totient is φ = 5155401216.

The previous prime is 12781112107. The next prime is 12781112209. The reversal of 12781112176 is 67121118721.

12781112176 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 466156 + ... + 492811.

Almost surely, 2^12781112176 is an apocalyptic number.

12781112176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12781112176 is an abundant number, since it is smaller than the sum of its proper divisors (17719824032).

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

12781112176 is a wasteful number, since it uses less digits than its factorization.

12781112176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959006 (or 958993 counting only the distinct ones).

The product of its digits is 9408, while the sum is 37.

The spelling of 12781112176 in words is "twelve billion, seven hundred eighty-one million, one hundred twelve thousand, one hundred seventy-six".