28533367469 has 2 divisors, whose sum is σ = 28533367470. Its totient is φ = 28533367468.

The previous prime is 28533367433. The next prime is 28533367547. The reversal of 28533367469 is 96476333582.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15443032900 + 13090334569 = 124270^2 + 114413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28533367469 is a prime.

It is a super-2 number, since 2×28533367469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28533367969) 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, 14266683734 + 14266683735.

It is an arithmetic number, because the mean of its divisors is an integer number (14266683735).

Almost surely, 2^28533367469 is an apocalyptic number.

It is an amenable number.

28533367469 is a deficient number, since it is larger than the sum of its proper divisors (1).

28533367469 is an equidigital number, since it uses as much as digits as its factorization.

28533367469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 56.

The spelling of 28533367469 in words is "twenty-eight billion, five hundred thirty-three million, three hundred sixty-seven thousand, four hundred sixty-nine".