12685108464 has 160 divisors (see below), whose sum is σ = 41655587840. Its totient is φ = 3620567808.

The previous prime is 12685108463. The next prime is 12685108477. The reversal of 12685108464 is 46480158621.

It is a happy number.

12685108464 is a `hidden beast` number, since 1 + 2 + 6 + 85 + 108 + 464 = 666.

12685108464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685108463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4392429 + ... + 4395315.

It is an arithmetic number, because the mean of its divisors is an integer number (260347424).

Almost surely, 2^12685108464 is an apocalyptic number.

12685108464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12685108464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20827793920).

12685108464 is an abundant number, since it is smaller than the sum of its proper divisors (28970479376).

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

12685108464 is a wasteful number, since it uses less digits than its factorization.

12685108464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364 (or 4352 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 12685108464 in words is "twelve billion, six hundred eighty-five million, one hundred eight thousand, four hundred sixty-four".