12709588657 has 2 divisors, whose sum is σ = 12709588658. Its totient is φ = 12709588656.

The previous prime is 12709588643. The next prime is 12709588673. The reversal of 12709588657 is 75688590721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6921574416 + 5788014241 = 83196^2 + 76079^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12709588657 is a prime.

It is not a weakly prime, because it can be changed into another prime (12709588687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354794328 + 6354794329.

It is an arithmetic number, because the mean of its divisors is an integer number (6354794329).

Almost surely, 2^12709588657 is an apocalyptic number.

It is an amenable number.

12709588657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12709588657 is an equidigital number, since it uses as much as digits as its factorization.

12709588657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 12709588657 in words is "twelve billion, seven hundred nine million, five hundred eighty-eight thousand, six hundred fifty-seven".