28429669349 has 2 divisors, whose sum is σ = 28429669350. Its totient is φ = 28429669348.

The previous prime is 28429669327. The next prime is 28429669351. The reversal of 28429669349 is 94396692482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28020416449 + 409252900 = 167393^2 + 20230^2 .

It is a cyclic number.

It is not a de Polignac number, because 28429669349 - 2²⁴ = 28412892133 is a prime.

Together with 28429669351, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28429669291 and 28429669300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28429669369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14214834674 + 14214834675.

It is an arithmetic number, because the mean of its divisors is an integer number (14214834675).

Almost surely, 2^28429669349 is an apocalyptic number.

It is an amenable number.

28429669349 is a deficient number, since it is larger than the sum of its proper divisors (1).

28429669349 is an equidigital number, since it uses as much as digits as its factorization.

28429669349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40310784, while the sum is 62.

The spelling of 28429669349 in words is "twenty-eight billion, four hundred twenty-nine million, six hundred sixty-nine thousand, three hundred forty-nine".