12944470632 has 128 divisors (see below), whose sum is σ = 34461504000. Its totient is φ = 4040375040.

The previous prime is 12944470631. The next prime is 12944470673. The reversal of 12944470632 is 23607444921.

It is not an unprimeable number, because it can be changed into a prime (12944470631) 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, 28078882 + ... + 28079342.

It is an arithmetic number, because the mean of its divisors is an integer number (269230500).

Almost surely, 2^12944470632 is an apocalyptic number.

12944470632 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 12944470632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17230752000).

12944470632 is an abundant number, since it is smaller than the sum of its proper divisors (21517033368).

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

12944470632 is a wasteful number, since it uses less digits than its factorization.

12944470632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 12944470632 in words is "twelve billion, nine hundred forty-four million, four hundred seventy thousand, six hundred thirty-two".