28801665273 has 8 divisors (see below), whose sum is σ = 38447243968. Its totient is φ = 19178598384.

The previous prime is 28801665271. The next prime is 28801665289. The reversal of 28801665273 is 37256610882.

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

It is not a de Polignac number, because 28801665273 - 2¹ = 28801665271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28801665271) 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, 5624965 + ... + 5630082.

It is an arithmetic number, because the mean of its divisors is an integer number (4805905496).

Almost surely, 2^28801665273 is an apocalyptic number.

It is an amenable number.

28801665273 is a deficient number, since it is larger than the sum of its proper divisors (9645578695).

28801665273 is a wasteful number, since it uses less digits than its factorization.

28801665273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11255903.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 28801665273 in words is "twenty-eight billion, eight hundred one million, six hundred sixty-five thousand, two hundred seventy-three".