28533332837 has 2 divisors, whose sum is σ = 28533332838. Its totient is φ = 28533332836.

The previous prime is 28533332803. The next prime is 28533332857. The reversal of 28533332837 is 73823333582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16941365281 + 11591967556 = 130159^2 + 107666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28533332837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28533332791 and 28533332800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28533332857) 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, 14266666418 + 14266666419.

It is an arithmetic number, because the mean of its divisors is an integer number (14266666419).

Almost surely, 2^28533332837 is an apocalyptic number.

It is an amenable number.

28533332837 is a deficient number, since it is larger than the sum of its proper divisors (1).

28533332837 is an equidigital number, since it uses as much as digits as its factorization.

28533332837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 47.

The spelling of 28533332837 in words is "twenty-eight billion, five hundred thirty-three million, three hundred thirty-two thousand, eight hundred thirty-seven".