12650869867 has 4 divisors (see below), whose sum is σ = 12651795000. Its totient is φ = 12649944736.

The previous prime is 12650869843. The next prime is 12650869871. The reversal of 12650869867 is 76896805621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12650869867 - 2¹¹ = 12650867819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12650869067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441742 + ... + 469507.

It is an arithmetic number, because the mean of its divisors is an integer number (3162948750).

Almost surely, 2^12650869867 is an apocalyptic number.

12650869867 is a deficient number, since it is larger than the sum of its proper divisors (925133).

12650869867 is an equidigital number, since it uses as much as digits as its factorization.

12650869867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925132.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 12650869867 in words is "twelve billion, six hundred fifty million, eight hundred sixty-nine thousand, eight hundred sixty-seven".