28298784734219 has 2 divisors, whose sum is σ = 28298784734220. Its totient is φ = 28298784734218.

The previous prime is 28298784734197. The next prime is 28298784734303. The reversal of 28298784734219 is 91243748789282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28298784734219 - 2¹² = 28298784730123 is a prime.

It is a super-2 number, since 2×28298784734219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28298784734719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14149392367109 + 14149392367110.

It is an arithmetic number, because the mean of its divisors is an integer number (14149392367110).

Almost surely, 2^{28298784734219} is an apocalyptic number.

28298784734219 is a deficient number, since it is larger than the sum of its proper divisors (1).

28298784734219 is an equidigital number, since it uses as much as digits as its factorization.

28298784734219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 780337152, while the sum is 74.

The spelling of 28298784734219 in words is "twenty-eight trillion, two hundred ninety-eight billion, seven hundred eighty-four million, seven hundred thirty-four thousand, two hundred nineteen".