28333848121 has 2 divisors, whose sum is σ = 28333848122. Its totient is φ = 28333848120.

The previous prime is 28333848113. The next prime is 28333848139. The reversal of 28333848121 is 12184833382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24962420025 + 3371428096 = 157995^2 + 58064^2 .

It is a cyclic number.

It is not a de Polignac number, because 28333848121 - 2³ = 28333848113 is a prime.

It is not a weakly prime, because it can be changed into another prime (28333848161) 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, 14166924060 + 14166924061.

It is an arithmetic number, because the mean of its divisors is an integer number (14166924061).

Almost surely, 2^28333848121 is an apocalyptic number.

It is an amenable number.

28333848121 is a deficient number, since it is larger than the sum of its proper divisors (1).

28333848121 is an equidigital number, since it uses as much as digits as its factorization.

28333848121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The spelling of 28333848121 in words is "twenty-eight billion, three hundred thirty-three million, eight hundred forty-eight thousand, one hundred twenty-one".