12904266889 has 2 divisors, whose sum is σ = 12904266890. Its totient is φ = 12904266888.

The previous prime is 12904266829. The next prime is 12904266901. The reversal of 12904266889 is 98866240921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9046863225 + 3857403664 = 95115^2 + 62108^2 .

It is a cyclic number.

It is not a de Polignac number, because 12904266889 - 2²⁵ = 12870712457 is a prime.

It is not a weakly prime, because it can be changed into another prime (12904266829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6452133444 + 6452133445.

It is an arithmetic number, because the mean of its divisors is an integer number (6452133445).

Almost surely, 2^12904266889 is an apocalyptic number.

It is an amenable number.

12904266889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12904266889 is an equidigital number, since it uses as much as digits as its factorization.

12904266889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 12904266889 in words is "twelve billion, nine hundred four million, two hundred sixty-six thousand, eight hundred eighty-nine".