12771216935 has 16 divisors (see below), whose sum is σ = 16604333856. Its totient is φ = 9392345088.

The previous prime is 12771216919. The next prime is 12771216943. The reversal of 12771216935 is 53961217721.

It is a cyclic number.

It is not a de Polignac number, because 12771216935 - 2⁴ = 12771216919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1743434 + ... + 1750743.

It is an arithmetic number, because the mean of its divisors is an integer number (1037770866).

Almost surely, 2^12771216935 is an apocalyptic number.

12771216935 is a deficient number, since it is larger than the sum of its proper divisors (3833116921).

12771216935 is a wasteful number, since it uses less digits than its factorization.

12771216935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494242.

The product of its digits is 158760, while the sum is 44.

The spelling of 12771216935 in words is "twelve billion, seven hundred seventy-one million, two hundred sixteen thousand, nine hundred thirty-five".