28684780583 has 2 divisors, whose sum is σ = 28684780584. Its totient is φ = 28684780582.

The previous prime is 28684780549. The next prime is 28684780627. The reversal of 28684780583 is 38508748682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28684780583 - 2⁶ = 28684780519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28684780183) 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, 14342390291 + 14342390292.

It is an arithmetic number, because the mean of its divisors is an integer number (14342390292).

Almost surely, 2^28684780583 is an apocalyptic number.

28684780583 is a deficient number, since it is larger than the sum of its proper divisors (1).

28684780583 is an equidigital number, since it uses as much as digits as its factorization.

28684780583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20643840, while the sum is 59.

The spelling of 28684780583 in words is "twenty-eight billion, six hundred eighty-four million, seven hundred eighty thousand, five hundred eighty-three".