12687562685 has 8 divisors (see below), whose sum is σ = 17400086016. Its totient is φ = 8700042960.

The previous prime is 12687562649. The next prime is 12687562687. The reversal of 12687562685 is 58626578621.

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

It is not a de Polignac number, because 12687562685 - 2¹⁰ = 12687561661 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12687562685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12687562687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181250861 + ... + 181250930.

It is an arithmetic number, because the mean of its divisors is an integer number (2175010752).

Almost surely, 2^12687562685 is an apocalyptic number.

It is an amenable number.

12687562685 is a deficient number, since it is larger than the sum of its proper divisors (4712523331).

12687562685 is an equidigital number, since it uses as much as digits as its factorization.

12687562685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362501803.

The product of its digits is 9676800, while the sum is 56.

The spelling of 12687562685 in words is "twelve billion, six hundred eighty-seven million, five hundred sixty-two thousand, six hundred eighty-five".