12969867672 has 96 divisors (see below), whose sum is σ = 35572118400. Its totient is φ = 4268685312.

The previous prime is 12969867671. The next prime is 12969867683. The reversal of 12969867672 is 27676896921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12969867671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3343398 + ... + 3347274.

It is an arithmetic number, because the mean of its divisors is an integer number (370542900).

Almost surely, 2^12969867672 is an apocalyptic number.

12969867672 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 12969867672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17786059200).

12969867672 is an abundant number, since it is smaller than the sum of its proper divisors (22602250728).

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

12969867672 is a wasteful number, since it uses less digits than its factorization.

12969867672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4465 (or 4458 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 12969867672 in words is "twelve billion, nine hundred sixty-nine million, eight hundred sixty-seven thousand, six hundred seventy-two".