28845249317 has 8 divisors (see below), whose sum is σ = 28890177024. Its totient is φ = 28800355248.

The previous prime is 28845249299. The next prime is 28845249319. The reversal of 28845249317 is 71394254882.

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 28845249317 - 2¹⁰ = 28845248293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28845249319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099723 + ... + 2113415.

It is an arithmetic number, because the mean of its divisors is an integer number (3611272128).

Almost surely, 2^28845249317 is an apocalyptic number.

It is an amenable number.

28845249317 is a deficient number, since it is larger than the sum of its proper divisors (44927707).

28845249317 is a wasteful number, since it uses less digits than its factorization.

28845249317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16819.

The product of its digits is 3870720, while the sum is 53.

The spelling of 28845249317 in words is "twenty-eight billion, eight hundred forty-five million, two hundred forty-nine thousand, three hundred seventeen".