12754691671 has 4 divisors (see below), whose sum is σ = 12756663144. Its totient is φ = 12752720200.

The previous prime is 12754691669. The next prime is 12754691683. The reversal of 12754691671 is 17619645721.

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 12754691671 - 2¹ = 12754691669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12754691641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976000 + ... + 988981.

It is an arithmetic number, because the mean of its divisors is an integer number (3189165786).

Almost surely, 2^12754691671 is an apocalyptic number.

12754691671 is a deficient number, since it is larger than the sum of its proper divisors (1971473).

12754691671 is an equidigital number, since it uses as much as digits as its factorization.

12754691671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971472.

The product of its digits is 635040, while the sum is 49.

The spelling of 12754691671 in words is "twelve billion, seven hundred fifty-four million, six hundred ninety-one thousand, six hundred seventy-one".