28784680163 has 2 divisors, whose sum is σ = 28784680164. Its totient is φ = 28784680162.

The previous prime is 28784680153. The next prime is 28784680193. The reversal of 28784680163 is 36108648782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28784680163 - 2¹⁶ = 28784614627 is a prime.

It is not a weakly prime, because it can be changed into another prime (28784680153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14392340081 + 14392340082.

It is an arithmetic number, because the mean of its divisors is an integer number (14392340082).

Almost surely, 2^28784680163 is an apocalyptic number.

28784680163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28784680163 is an equidigital number, since it uses as much as digits as its factorization.

28784680163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 28784680163 in words is "twenty-eight billion, seven hundred eighty-four million, six hundred eighty thousand, one hundred sixty-three".