12687942611 has 8 divisors (see below), whose sum is σ = 12708973584. Its totient is φ = 12666931200.

The previous prime is 12687942593. The next prime is 12687942613. The reversal of 12687942611 is 11624978621.

It is a happy number.

12687942611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12687942611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12687942613) 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 7 ways as a sum of consecutive naturals, for example, 1794395 + ... + 1801451.

It is an arithmetic number, because the mean of its divisors is an integer number (1588621698).

Almost surely, 2^12687942611 is an apocalyptic number.

12687942611 is a deficient number, since it is larger than the sum of its proper divisors (21030973).

12687942611 is a wasteful number, since it uses less digits than its factorization.

12687942611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9781.

The product of its digits is 290304, while the sum is 47.

The spelling of 12687942611 in words is "twelve billion, six hundred eighty-seven million, nine hundred forty-two thousand, six hundred eleven".