12688332346 has 32 divisors (see below), whose sum is σ = 19643420160. Its totient is φ = 6143742336.

The previous prime is 12688332343. The next prime is 12688332367. The reversal of 12688332346 is 64323388621.

It is a junction number, because it is equal to n+sod(n) for n = 12688332296 and 12688332305.

It is not an unprimeable number, because it can be changed into a prime (12688332343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3655900 + ... + 3659368.

It is an arithmetic number, because the mean of its divisors is an integer number (613856880).

Almost surely, 2^12688332346 is an apocalyptic number.

12688332346 is a deficient number, since it is larger than the sum of its proper divisors (6955087814).

12688332346 is a wasteful number, since it uses less digits than its factorization.

12688332346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918.

The product of its digits is 995328, while the sum is 46.

The spelling of 12688332346 in words is "twelve billion, six hundred eighty-eight million, three hundred thirty-two thousand, three hundred forty-six".