12708440513 has 2 divisors, whose sum is σ = 12708440514. Its totient is φ = 12708440512.

The previous prime is 12708440509. The next prime is 12708440519. The reversal of 12708440513 is 31504480721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8529076609 + 4179363904 = 92353^2 + 64648^2 .

It is a cyclic number.

It is not a de Polignac number, because 12708440513 - 2² = 12708440509 is a prime.

It is not a weakly prime, because it can be changed into another prime (12708440519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354220256 + 6354220257.

It is an arithmetic number, because the mean of its divisors is an integer number (6354220257).

Almost surely, 2^12708440513 is an apocalyptic number.

It is an amenable number.

12708440513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12708440513 is an equidigital number, since it uses as much as digits as its factorization.

12708440513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 12708440513 in words is "twelve billion, seven hundred eight million, four hundred forty thousand, five hundred thirteen".