12005078686 has 8 divisors (see below), whose sum is σ = 18182449584. Its totient is φ = 5944262160.

The previous prime is 12005078663. The next prime is 12005078713. The reversal of 12005078686 is 68687050021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29138335 + ... + 29138746.

It is an arithmetic number, because the mean of its divisors is an integer number (2272806198).

Almost surely, 2^12005078686 is an apocalyptic number.

12005078686 is a deficient number, since it is larger than the sum of its proper divisors (6177370898).

12005078686 is a wasteful number, since it uses less digits than its factorization.

12005078686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58277186.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 12005078686 in words is "twelve billion, five million, seventy-eight thousand, six hundred eighty-six".