12740380979 has 2 divisors, whose sum is σ = 12740380980. Its totient is φ = 12740380978.

The previous prime is 12740380969. The next prime is 12740381021. The reversal of 12740380979 is 97908304721.

It is a weak prime.

It is an emirp because it is prime and its reverse (97908304721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12740380979 - 2¹⁶ = 12740315443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12740380969) 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 as a sum of consecutive naturals, namely, 6370190489 + 6370190490.

It is an arithmetic number, because the mean of its divisors is an integer number (6370190490).

Almost surely, 2^12740380979 is an apocalyptic number.

12740380979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12740380979 is an equidigital number, since it uses as much as digits as its factorization.

12740380979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 12740380979 in words is "twelve billion, seven hundred forty million, three hundred eighty thousand, nine hundred seventy-nine".