28424448671 has 16 divisors (see below), whose sum is σ = 29070607104. Its totient is φ = 27786168384.

The previous prime is 28424448667. The next prime is 28424448727. The reversal of 28424448671 is 17684442482.

It is a cyclic number.

It is not a de Polignac number, because 28424448671 - 2² = 28424448667 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 (28424448601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10860155 + ... + 10862771.

It is an arithmetic number, because the mean of its divisors is an integer number (1816912944).

Almost surely, 2^28424448671 is an apocalyptic number.

28424448671 is a deficient number, since it is larger than the sum of its proper divisors (646158433).

28424448671 is a wasteful number, since it uses less digits than its factorization.

28424448671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030.

The product of its digits is 2752512, while the sum is 50.

The spelling of 28424448671 in words is "twenty-eight billion, four hundred twenty-four million, four hundred forty-eight thousand, six hundred seventy-one".