12740322705 has 16 divisors (see below), whose sum is σ = 22237654464. Its totient is φ = 6177126080.

The previous prime is 12740322703. The next prime is 12740322779. The reversal of 12740322705 is 50722304721.

It is not a de Polignac number, because 12740322705 - 2¹ = 12740322703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12740322703) 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 15 ways as a sum of consecutive naturals, for example, 38606874 + ... + 38607203.

It is an arithmetic number, because the mean of its divisors is an integer number (1389853404).

Almost surely, 2^12740322705 is an apocalyptic number.

12740322705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12740322705 is a deficient number, since it is larger than the sum of its proper divisors (9497331759).

12740322705 is a wasteful number, since it uses less digits than its factorization.

12740322705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214096.

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 12740322705 in words is "twelve billion, seven hundred forty million, three hundred twenty-two thousand, seven hundred five".