12684601817 has 8 divisors (see below), whose sum is σ = 12830180160. Its totient is φ = 12539415600.

The previous prime is 12684601807. The next prime is 12684601823. The reversal of 12684601817 is 71810648621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12684601817 - 2⁶ = 12684601753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12684601807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32717 + ... + 162602.

It is an arithmetic number, because the mean of its divisors is an integer number (1603772520).

Almost surely, 2^12684601817 is an apocalyptic number.

It is an amenable number.

12684601817 is a deficient number, since it is larger than the sum of its proper divisors (145578343).

12684601817 is a wasteful number, since it uses less digits than its factorization.

12684601817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196063.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 12684601817 in words is "twelve billion, six hundred eighty-four million, six hundred one thousand, eight hundred seventeen".