28308454483819 has 2 divisors, whose sum is σ = 28308454483820. Its totient is φ = 28308454483818.

The previous prime is 28308454483747. The next prime is 28308454483847. The reversal of 28308454483819 is 91838445480382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28308454483819 - 2⁹ = 28308454483307 is a prime.

It is a super-2 number, since 2×28308454483819² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28308454483219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14154227241909 + 14154227241910.

It is an arithmetic number, because the mean of its divisors is an integer number (14154227241910).

Almost surely, 2^{28308454483819} is an apocalyptic number.

28308454483819 is a deficient number, since it is larger than the sum of its proper divisors (1).

28308454483819 is an equidigital number, since it uses as much as digits as its factorization.

28308454483819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 212336640, while the sum is 67.

The spelling of 28308454483819 in words is "twenty-eight trillion, three hundred eight billion, four hundred fifty-four million, four hundred eighty-three thousand, eight hundred nineteen".