28550072219 has 2 divisors, whose sum is σ = 28550072220. Its totient is φ = 28550072218.

The previous prime is 28550072197. The next prime is 28550072233. The reversal of 28550072219 is 91227005582.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28550072219 is a prime.

It is a super-2 number, since 2×28550072219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28550072269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14275036109 + 14275036110.

It is an arithmetic number, because the mean of its divisors is an integer number (14275036110).

Almost surely, 2^28550072219 is an apocalyptic number.

28550072219 is a deficient number, since it is larger than the sum of its proper divisors (1).

28550072219 is an equidigital number, since it uses as much as digits as its factorization.

28550072219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 28550072219 in words is "twenty-eight billion, five hundred fifty million, seventy-two thousand, two hundred nineteen".