12688323447464 has 64 divisors (see below), whose sum is σ = 27291204044160. Its totient is φ = 5417470460160.

The previous prime is 12688323447463. The next prime is 12688323447469. The reversal of 12688323447464 is 46474432388621.

It is a junction number, because it is equal to n+sod(n) for n = 12688323447397 and 12688323447406.

It is not an unprimeable number, because it can be changed into a prime (12688323447461) 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, 120025559 + ... + 120131225.

It is an arithmetic number, because the mean of its divisors is an integer number (426425063190).

Almost surely, 2^{12688323447464} is an apocalyptic number.

12688323447464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12688323447464 is an abundant number, since it is smaller than the sum of its proper divisors (14602880596696).

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

12688323447464 is a wasteful number, since it uses less digits than its factorization.

12688323447464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113698 (or 113694 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 62.

The spelling of 12688323447464 in words is "twelve trillion, six hundred eighty-eight billion, three hundred twenty-three million, four hundred forty-seven thousand, four hundred sixty-four".