12684463851 has 8 divisors (see below), whose sum is σ = 17080070544. Its totient is φ = 8372583200.

The previous prime is 12684463829. The next prime is 12684463889. The reversal of 12684463851 is 15836448621.

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 12684463851 - 2⁵ = 12684463819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12684463851.

It is not an unprimeable number, because it can be changed into a prime (12684463811) 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, 20931156 + ... + 20931761.

It is an arithmetic number, because the mean of its divisors is an integer number (2135008818).

Almost surely, 2^12684463851 is an apocalyptic number.

12684463851 is a deficient number, since it is larger than the sum of its proper divisors (4395606693).

12684463851 is a wasteful number, since it uses less digits than its factorization.

12684463851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41863021.

The product of its digits is 1105920, while the sum is 48.

The spelling of 12684463851 in words is "twelve billion, six hundred eighty-four million, four hundred sixty-three thousand, eight hundred fifty-one".