12908146729 has 2 divisors, whose sum is σ = 12908146730. Its totient is φ = 12908146728.

The previous prime is 12908146721. The next prime is 12908146759. The reversal of 12908146729 is 92764180921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9338323225 + 3569823504 = 96635^2 + 59748^2 .

It is a cyclic number.

It is not a de Polignac number, because 12908146729 - 2³ = 12908146721 is a prime.

It is not a weakly prime, because it can be changed into another prime (12908146721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454073364 + 6454073365.

It is an arithmetic number, because the mean of its divisors is an integer number (6454073365).

Almost surely, 2^12908146729 is an apocalyptic number.

It is an amenable number.

12908146729 is a deficient number, since it is larger than the sum of its proper divisors (1).

12908146729 is an equidigital number, since it uses as much as digits as its factorization.

12908146729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 12908146729 in words is "twelve billion, nine hundred eight million, one hundred forty-six thousand, seven hundred twenty-nine".