28450985167 has 8 divisors (see below), whose sum is σ = 31059205632. Its totient is φ = 25846392600.

The previous prime is 28450985161. The next prime is 28450985201. The reversal of 28450985167 is 76158905482.

It is a happy number.

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 28450985167 - 2⁷ = 28450985039 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 (28450985161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890559 + ... + 921952.

It is an arithmetic number, because the mean of its divisors is an integer number (3882400704).

Almost surely, 2^28450985167 is an apocalyptic number.

28450985167 is a deficient number, since it is larger than the sum of its proper divisors (2608220465).

28450985167 is a wasteful number, since it uses less digits than its factorization.

28450985167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813949.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 28450985167 in words is "twenty-eight billion, four hundred fifty million, nine hundred eighty-five thousand, one hundred sixty-seven".