12876991296 has 336 divisors, whose sum is σ = 40059790848. Its totient is φ = 3624652800.

The previous prime is 12876991273. The next prime is 12876991331. The reversal of 12876991296 is 69219967821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27932506 + ... + 27932966.

It is an arithmetic number, because the mean of its divisors is an integer number (119225568).

Almost surely, 2^12876991296 is an apocalyptic number.

12876991296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12876991296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20029895424).

12876991296 is an abundant number, since it is smaller than the sum of its proper divisors (27182799552).

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

12876991296 is a wasteful number, since it uses less digits than its factorization.

12876991296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 529 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 60.

The spelling of 12876991296 in words is "twelve billion, eight hundred seventy-six million, nine hundred ninety-one thousand, two hundred ninety-six".