12688293112 has 64 divisors (see below), whose sum is σ = 26594789760. Its totient is φ = 5625244800.

The previous prime is 12688293071. The next prime is 12688293143. The reversal of 12688293112 is 21139288621.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3225787 + ... + 3229717.

It is an arithmetic number, because the mean of its divisors is an integer number (415543590).

Almost surely, 2^12688293112 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 12688293112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13297394880).

12688293112 is an abundant number, since it is smaller than the sum of its proper divisors (13906496648).

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

12688293112 is a wasteful number, since it uses less digits than its factorization.

12688293112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4840 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The spelling of 12688293112 in words is "twelve billion, six hundred eighty-eight million, two hundred ninety-three thousand, one hundred twelve".