12551333269 has 2 divisors, whose sum is σ = 12551333270. Its totient is φ = 12551333268.

The previous prime is 12551333237. The next prime is 12551333273. The reversal of 12551333269 is 96233315521.

12551333269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7264152900 + 5287180369 = 85230^2 + 72713^2 .

It is a cyclic number.

It is not a de Polignac number, because 12551333269 - 2⁵ = 12551333237 is a prime.

It is a super-2 number, since 2×12551333269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12551333209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275666634 + 6275666635.

It is an arithmetic number, because the mean of its divisors is an integer number (6275666635).

Almost surely, 2^12551333269 is an apocalyptic number.

It is an amenable number.

12551333269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551333269 is an equidigital number, since it uses as much as digits as its factorization.

12551333269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 40.

The spelling of 12551333269 in words is "twelve billion, five hundred fifty-one million, three hundred thirty-three thousand, two hundred sixty-nine".