12647269888 has 160 divisors (see below), whose sum is σ = 28764730368. Its totient is φ = 5503180800.

The previous prime is 12647269883. The next prime is 12647269897. The reversal of 12647269888 is 88896274621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12647269883) 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 15 ways as a sum of consecutive naturals, for example, 18681006 + ... + 18681682.

Almost surely, 2^12647269888 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 12647269888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14382365184).

12647269888 is an abundant number, since it is smaller than the sum of its proper divisors (16117460480).

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

12647269888 is a wasteful number, since it uses less digits than its factorization.

12647269888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 828 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 61.

The spelling of 12647269888 in words is "twelve billion, six hundred forty-seven million, two hundred sixty-nine thousand, eight hundred eighty-eight".