28828365249 has 8 divisors (see below), whose sum is σ = 38964366112. Its totient is φ = 18955637280.

The previous prime is 28828365233. The next prime is 28828365287. The reversal of 28828365249 is 94256382882.

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

It is not a de Polignac number, because 28828365249 - 2⁴ = 28828365233 is a prime.

It is a super-3 number, since 3×28828365249³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28828365289) 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 in 7 ways as a sum of consecutive naturals, for example, 65817967 + ... + 65818404.

It is an arithmetic number, because the mean of its divisors is an integer number (4870545764).

Almost surely, 2^28828365249 is an apocalyptic number.

It is an amenable number.

28828365249 is a deficient number, since it is larger than the sum of its proper divisors (10136000863).

28828365249 is a wasteful number, since it uses less digits than its factorization.

28828365249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131636447.

The product of its digits is 13271040, while the sum is 57.

The spelling of 28828365249 in words is "twenty-eight billion, eight hundred twenty-eight million, three hundred sixty-five thousand, two hundred forty-nine".