28333864541 has 2 divisors, whose sum is σ = 28333864542. Its totient is φ = 28333864540.

The previous prime is 28333864451. The next prime is 28333864619. The reversal of 28333864541 is 14546833382.

Together with previous prime (28333864451) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20117167225 + 8216697316 = 141835^2 + 90646^2 .

It is a cyclic number.

It is not a de Polignac number, because 28333864541 - 2¹⁰ = 28333863517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28333834541) 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, 14166932270 + 14166932271.

It is an arithmetic number, because the mean of its divisors is an integer number (14166932271).

Almost surely, 2^28333864541 is an apocalyptic number.

It is an amenable number.

28333864541 is a deficient number, since it is larger than the sum of its proper divisors (1).

28333864541 is an equidigital number, since it uses as much as digits as its factorization.

28333864541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 47.

The spelling of 28333864541 in words is "twenty-eight billion, three hundred thirty-three million, eight hundred sixty-four thousand, five hundred forty-one".