28228718299 has 2 divisors, whose sum is σ = 28228718300. Its totient is φ = 28228718298.

The previous prime is 28228718281. The next prime is 28228718333. The reversal of 28228718299 is 99281782282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28228718299 - 2⁵ = 28228718267 is a prime.

It is not a weakly prime, because it can be changed into another prime (28228718599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14114359149 + 14114359150.

It is an arithmetic number, because the mean of its divisors is an integer number (14114359150).

Almost surely, 2^28228718299 is an apocalyptic number.

28228718299 is a deficient number, since it is larger than the sum of its proper divisors (1).

28228718299 is an equidigital number, since it uses as much as digits as its factorization.

28228718299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 58.

The spelling of 28228718299 in words is "twenty-eight billion, two hundred twenty-eight million, seven hundred eighteen thousand, two hundred ninety-nine".