12880439489 has 2 divisors, whose sum is σ = 12880439490. Its totient is φ = 12880439488.

The previous prime is 12880439483. The next prime is 12880439491. The reversal of 12880439489 is 98493408821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8594773264 + 4285666225 = 92708^2 + 65465^2 .

It is a cyclic number.

It is not a de Polignac number, because 12880439489 - 2¹⁶ = 12880373953 is a prime.

It is a super-2 number, since 2×12880439489² (a number of 21 digits) contains 22 as substring.

Together with 12880439491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12880439483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6440219744 + 6440219745.

It is an arithmetic number, because the mean of its divisors is an integer number (6440219745).

Almost surely, 2^12880439489 is an apocalyptic number.

It is an amenable number.

12880439489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12880439489 is an equidigital number, since it uses as much as digits as its factorization.

12880439489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 12880439489 in words is "twelve billion, eight hundred eighty million, four hundred thirty-nine thousand, four hundred eighty-nine".