28289577219 has 4 divisors (see below), whose sum is σ = 37719436296. Its totient is φ = 18859718144.

The previous prime is 28289577203. The next prime is 28289577289. The reversal of 28289577219 is 91277598282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28289577219 - 2⁴ = 28289577203 is a prime.

It is a super-2 number, since 2×28289577219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28289577289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4714929534 + ... + 4714929539.

It is an arithmetic number, because the mean of its divisors is an integer number (9429859074).

Almost surely, 2^28289577219 is an apocalyptic number.

28289577219 is a deficient number, since it is larger than the sum of its proper divisors (9429859077).

28289577219 is an equidigital number, since it uses as much as digits as its factorization.

28289577219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429859076.

The product of its digits is 10160640, while the sum is 60.

The spelling of 28289577219 in words is "twenty-eight billion, two hundred eighty-nine million, five hundred seventy-seven thousand, two hundred nineteen".