28928305333 has 2 divisors, whose sum is σ = 28928305334. Its totient is φ = 28928305332.

The previous prime is 28928305321. The next prime is 28928305363. The reversal of 28928305333 is 33350382982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28927886724 + 418609 = 170082^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 28928305333 - 2¹³ = 28928297141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28928305313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14464152666 + 14464152667.

It is an arithmetic number, because the mean of its divisors is an integer number (14464152667).

Almost surely, 2^28928305333 is an apocalyptic number.

It is an amenable number.

28928305333 is a deficient number, since it is larger than the sum of its proper divisors (1).

28928305333 is an equidigital number, since it uses as much as digits as its factorization.

28928305333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 28928305333 in words is "twenty-eight billion, nine hundred twenty-eight million, three hundred five thousand, three hundred thirty-three".