28320775519 has 2 divisors, whose sum is σ = 28320775520. Its totient is φ = 28320775518.

The previous prime is 28320775453. The next prime is 28320775547. The reversal of 28320775519 is 91557702382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28320775519 - 2¹³ = 28320767327 is a prime.

It is a super-2 number, since 2×28320775519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28320770519) 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, 14160387759 + 14160387760.

It is an arithmetic number, because the mean of its divisors is an integer number (14160387760).

Almost surely, 2^28320775519 is an apocalyptic number.

28320775519 is a deficient number, since it is larger than the sum of its proper divisors (1).

28320775519 is an equidigital number, since it uses as much as digits as its factorization.

28320775519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 28320775519 in words is "twenty-eight billion, three hundred twenty million, seven hundred seventy-five thousand, five hundred nineteen".