13776528869 has 2 divisors, whose sum is σ = 13776528870. Its totient is φ = 13776528868.

The previous prime is 13776528853. The next prime is 13776528881. The reversal of 13776528869 is 96882567731.

13776528869 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., 13703511844 + 73017025 = 117062^2 + 8545^2 .

It is a cyclic number.

It is not a de Polignac number, because 13776528869 - 2⁴ = 13776528853 is a prime.

It is a super-2 number, since 2×13776528869² (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 (13776528769) 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, 6888264434 + 6888264435.

It is an arithmetic number, because the mean of its divisors is an integer number (6888264435).

Almost surely, 2^13776528869 is an apocalyptic number.

It is an amenable number.

13776528869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13776528869 is an equidigital number, since it uses as much as digits as its factorization.

13776528869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The spelling of 13776528869 in words is "thirteen billion, seven hundred seventy-six million, five hundred twenty-eight thousand, eight hundred sixty-nine".