12732487549 has 2 divisors, whose sum is σ = 12732487550. Its totient is φ = 12732487548.

The previous prime is 12732487541. The next prime is 12732487561. The reversal of 12732487549 is 94578423721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11258695449 + 1473792100 = 106107^2 + 38390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12732487549 - 2³ = 12732487541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12732487496 and 12732487505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12732487541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6366243774 + 6366243775.

It is an arithmetic number, because the mean of its divisors is an integer number (6366243775).

Almost surely, 2^12732487549 is an apocalyptic number.

It is an amenable number.

12732487549 is a deficient number, since it is larger than the sum of its proper divisors (1).

12732487549 is an equidigital number, since it uses as much as digits as its factorization.

12732487549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 52.

The spelling of 12732487549 in words is "twelve billion, seven hundred thirty-two million, four hundred eighty-seven thousand, five hundred forty-nine".