12609363381678 has 24 divisors (see below), whose sum is σ = 31223185516848. Its totient is φ = 3602675251872.

The previous prime is 12609363381617. The next prime is 12609363381683. The reversal of 12609363381678 is 87618336390621.

12609363381678 is a `hidden beast` number, since 1 + 2 + 609 + 3 + 6 + 3 + 3 + 8 + 16 + 7 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50037156151 + ... + 50037156402.

It is an arithmetic number, because the mean of its divisors is an integer number (1300966063202).

Almost surely, 2^{12609363381678} is an apocalyptic number.

12609363381678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12609363381678 is an abundant number, since it is smaller than the sum of its proper divisors (18613822135170).

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

12609363381678 is a wasteful number, since it uses less digits than its factorization.

12609363381678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100074312568 (or 100074312565 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 63.

The spelling of 12609363381678 in words is "twelve trillion, six hundred nine billion, three hundred sixty-three million, three hundred eighty-one thousand, six hundred seventy-eight".