12795722688 has 168 divisors, whose sum is σ = 39984249216. Its totient is φ = 3537630720.

The previous prime is 12795722647. The next prime is 12795722689. The reversal of 12795722688 is 88622759721.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12795722689) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1286631 + ... + 1296537.

Almost surely, 2^12795722688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12795722688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19992124608).

12795722688 is an abundant number, since it is smaller than the sum of its proper divisors (27188526528).

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

12795722688 is an equidigital number, since it uses as much as digits as its factorization.

12795722688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991 (or 9950 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 57.

The spelling of 12795722688 in words is "twelve billion, seven hundred ninety-five million, seven hundred twenty-two thousand, six hundred eighty-eight".