12740380993 has 8 divisors (see below), whose sum is σ = 12757868136. Its totient is φ = 12722908800.

The previous prime is 12740380979. The next prime is 12740381021. The reversal of 12740380993 is 39908304721.

12740380993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1955143089 + 10785237904 = 44217^2 + 103852^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12740380993 - 2²¹ = 12738283841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12740387993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3524455 + ... + 3528067.

It is an arithmetic number, because the mean of its divisors is an integer number (1594733517).

Almost surely, 2^12740380993 is an apocalyptic number.

It is an amenable number.

12740380993 is a deficient number, since it is larger than the sum of its proper divisors (17487143).

12740380993 is a wasteful number, since it uses less digits than its factorization.

12740380993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 12740380993 in words is "twelve billion, seven hundred forty million, three hundred eighty thousand, nine hundred ninety-three".