12415261489 has 2 divisors, whose sum is σ = 12415261490. Its totient is φ = 12415261488.

The previous prime is 12415261487. The next prime is 12415261513. The reversal of 12415261489 is 98416251421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9330014464 + 3085247025 = 96592^2 + 55545^2 .

It is a cyclic number.

It is not a de Polignac number, because 12415261489 - 2¹ = 12415261487 is a prime.

Together with 12415261487, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12415261487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6207630744 + 6207630745.

It is an arithmetic number, because the mean of its divisors is an integer number (6207630745).

Almost surely, 2^12415261489 is an apocalyptic number.

It is an amenable number.

12415261489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12415261489 is an equidigital number, since it uses as much as digits as its factorization.

12415261489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 43.

The spelling of 12415261489 in words is "twelve billion, four hundred fifteen million, two hundred sixty-one thousand, four hundred eighty-nine".