12807969481 has 2 divisors, whose sum is σ = 12807969482. Its totient is φ = 12807969480.

The previous prime is 12807969457. The next prime is 12807969529. The reversal of 12807969481 is 18496970821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12206935225 + 601034256 = 110485^2 + 24516^2 .

It is a cyclic number.

It is not a de Polignac number, because 12807969481 - 2⁹ = 12807968969 is a prime.

It is a super-2 number, since 2×12807969481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12807969281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403984740 + 6403984741.

It is an arithmetic number, because the mean of its divisors is an integer number (6403984741).

Almost surely, 2^12807969481 is an apocalyptic number.

It is an amenable number.

12807969481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12807969481 is an equidigital number, since it uses as much as digits as its factorization.

12807969481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 12807969481 in words is "twelve billion, eight hundred seven million, nine hundred sixty-nine thousand, four hundred eighty-one".