12546826671 has 4 divisors (see below), whose sum is σ = 16729102232. Its totient is φ = 8364551112.

The previous prime is 12546826667. The next prime is 12546826717. The reversal of 12546826671 is 17662864521.

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

It is not a de Polignac number, because 12546826671 - 2² = 12546826667 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 12546826671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546824671) 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, 2091137776 + ... + 2091137781.

It is an arithmetic number, because the mean of its divisors is an integer number (4182275558).

Almost surely, 2^12546826671 is an apocalyptic number.

12546826671 is a deficient number, since it is larger than the sum of its proper divisors (4182275561).

12546826671 is an equidigital number, since it uses as much as digits as its factorization.

12546826671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4182275560.

The product of its digits is 967680, while the sum is 48.

The spelling of 12546826671 in words is "twelve billion, five hundred forty-six million, eight hundred twenty-six thousand, six hundred seventy-one".