12976422912 has 160 divisors (see below), whose sum is σ = 38776404150. Its totient is φ = 4324589568.

The previous prime is 12976422887. The next prime is 12976422947. The reversal of 12976422912 is 21922467921.

It can be written as a sum of positive squares in only one way, i.e., 10044850176 + 2931572736 = 100224^2 + 54144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2651764 + ... + 2656652.

Almost surely, 2^12976422912 is an apocalyptic number.

12976422912 is a gapful number since it is divisible by the number (12) 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 12976422912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19388202075).

12976422912 is an abundant number, since it is smaller than the sum of its proper divisors (25799981238).

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

12976422912 is an frugal number, since it uses more digits than its factorization.

12976422912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931 (or 4894 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The spelling of 12976422912 in words is "twelve billion, nine hundred seventy-six million, four hundred twenty-two thousand, nine hundred twelve".