16269689789 has 2 divisors, whose sum is σ = 16269689790. Its totient is φ = 16269689788.

The previous prime is 16269689773. The next prime is 16269689833. The reversal of 16269689789 is 98798696261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14807239225 + 1462450564 = 121685^2 + 38242^2 .

It is a cyclic number.

It is not a de Polignac number, because 16269689789 - 2⁴ = 16269689773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16269689089) 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, 8134844894 + 8134844895.

It is an arithmetic number, because the mean of its divisors is an integer number (8134844895).

Almost surely, 2^16269689789 is an apocalyptic number.

It is an amenable number.

16269689789 is a deficient number, since it is larger than the sum of its proper divisors (1).

16269689789 is an equidigital number, since it uses as much as digits as its factorization.

16269689789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141087744, while the sum is 71.

The spelling of 16269689789 in words is "sixteen billion, two hundred sixty-nine million, six hundred eighty-nine thousand, seven hundred eighty-nine".