12318785688 has 64 divisors (see below), whose sum is σ = 33615313920. Its totient is φ = 3730896000.

The previous prime is 12318785663. The next prime is 12318785693. The reversal of 12318785688 is 88658781321.

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, 503106 + ... + 527022.

It is an arithmetic number, because the mean of its divisors is an integer number (525239280).

Almost surely, 2^12318785688 is an apocalyptic number.

It is an amenable number.

12318785688 is an abundant number, since it is smaller than the sum of its proper divisors (21296528232).

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

12318785688 is a wasteful number, since it uses less digits than its factorization.

12318785688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25888 (or 25884 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 57.

The spelling of 12318785688 in words is "twelve billion, three hundred eighteen million, seven hundred eighty-five thousand, six hundred eighty-eight".