28728583783 has 2 divisors, whose sum is σ = 28728583784. Its totient is φ = 28728583782.

The previous prime is 28728583769. The next prime is 28728583879. The reversal of 28728583783 is 38738582782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28728583783 - 2¹³ = 28728575591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28728583753) 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, 14364291891 + 14364291892.

It is an arithmetic number, because the mean of its divisors is an integer number (14364291892).

Almost surely, 2^28728583783 is an apocalyptic number.

28728583783 is a deficient number, since it is larger than the sum of its proper divisors (1).

28728583783 is an equidigital number, since it uses as much as digits as its factorization.

28728583783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36126720, while the sum is 61.

The spelling of 28728583783 in words is "twenty-eight billion, seven hundred twenty-eight million, five hundred eighty-three thousand, seven hundred eighty-three".