12546491263 has 2 divisors, whose sum is σ = 12546491264. Its totient is φ = 12546491262.

The previous prime is 12546491233. The next prime is 12546491273. The reversal of 12546491263 is 36219464521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12546491263 - 2³³ = 3956556671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12546491233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6273245631 + 6273245632.

It is an arithmetic number, because the mean of its divisors is an integer number (6273245632).

Almost surely, 2^12546491263 is an apocalyptic number.

12546491263 is a deficient number, since it is larger than the sum of its proper divisors (1).

12546491263 is an equidigital number, since it uses as much as digits as its factorization.

12546491263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 43.

The spelling of 12546491263 in words is "twelve billion, five hundred forty-six million, four hundred ninety-one thousand, two hundred sixty-three".