12740422771 has 4 divisors (see below), whose sum is σ = 12956362200. Its totient is φ = 12524483344.

The previous prime is 12740422769. The next prime is 12740422777. The reversal of 12740422771 is 17722404721.

It is a happy number.

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 12740422771 - 2¹ = 12740422769 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 12740422771.

It is not an unprimeable number, because it can be changed into a prime (12740422777) 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, 107969626 + ... + 107969743.

It is an arithmetic number, because the mean of its divisors is an integer number (3239090550).

Almost surely, 2^12740422771 is an apocalyptic number.

12740422771 is a deficient number, since it is larger than the sum of its proper divisors (215939429).

12740422771 is an equidigital number, since it uses as much as digits as its factorization.

12740422771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215939428.

The product of its (nonzero) digits is 43904, while the sum is 37.

The spelling of 12740422771 in words is "twelve billion, seven hundred forty million, four hundred twenty-two thousand, seven hundred seventy-one".