12807969529 has 2 divisors, whose sum is σ = 12807969530. Its totient is φ = 12807969528.

The previous prime is 12807969481. The next prime is 12807969539. The reversal of 12807969529 is 92596970821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10764477504 + 2043492025 = 103752^2 + 45205^2 .

It is a cyclic number.

It is not a de Polignac number, because 12807969529 - 2¹³ = 12807961337 is a prime.

It is not a weakly prime, because it can be changed into another prime (12807969539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403984764 + 6403984765.

It is an arithmetic number, because the mean of its divisors is an integer number (6403984765).

Almost surely, 2^12807969529 is an apocalyptic number.

It is an amenable number.

12807969529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12807969529 is an equidigital number, since it uses as much as digits as its factorization.

12807969529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 12807969529 in words is "twelve billion, eight hundred seven million, nine hundred sixty-nine thousand, five hundred twenty-nine".