12771043727 has 16 divisors (see below), whose sum is σ = 13880895840. Its totient is φ = 11679887232.

The previous prime is 12771043721. The next prime is 12771043741. The reversal of 12771043727 is 72734017721.

It is not a de Polignac number, because 12771043727 - 2⁸ = 12771043471 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 (12771043721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 634673 + ... + 654485.

It is an arithmetic number, because the mean of its divisors is an integer number (867555990).

Almost surely, 2^12771043727 is an apocalyptic number.

12771043727 is a deficient number, since it is larger than the sum of its proper divisors (1109852113).

12771043727 is a wasteful number, since it uses less digits than its factorization.

12771043727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20282.

The product of its (nonzero) digits is 115248, while the sum is 41.

The spelling of 12771043727 in words is "twelve billion, seven hundred seventy-one million, forty-three thousand, seven hundred twenty-seven".