28875717449 has 8 divisors (see below), whose sum is σ = 29607596928. Its totient is φ = 28148734000.

The previous prime is 28875717323. The next prime is 28875717461. The reversal of 28875717449 is 94471757882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28875717449 - 2²⁴ = 28858940233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28875717391 and 28875717400.

It is not an unprimeable number, because it can be changed into a prime (28875716449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212062 + ... + 1235655.

It is an arithmetic number, because the mean of its divisors is an integer number (3700949616).

Almost surely, 2^28875717449 is an apocalyptic number.

It is an amenable number.

28875717449 is a deficient number, since it is larger than the sum of its proper divisors (731879479).

28875717449 is a wasteful number, since it uses less digits than its factorization.

28875717449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448015.

The product of its digits is 31610880, while the sum is 62.

The spelling of 28875717449 in words is "twenty-eight billion, eight hundred seventy-five million, seven hundred seventeen thousand, four hundred forty-nine".