28717443031443 has 16 divisors (see below), whose sum is σ = 38300588467200. Its totient is φ = 19139630205920.

The previous prime is 28717443031429. The next prime is 28717443031477. The reversal of 28717443031443 is 34413034471782.

It is a cyclic number.

It is not a de Polignac number, because 28717443031443 - 2¹⁷ = 28717442900371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28717443030443) 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, 592344478 + ... + 592392956.

It is an arithmetic number, because the mean of its divisors is an integer number (2393786779200).

Almost surely, 2^{28717443031443} is an apocalyptic number.

28717443031443 is a deficient number, since it is larger than the sum of its proper divisors (9583145435757).

28717443031443 is a wasteful number, since it uses less digits than its factorization.

28717443031443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99402.

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 28717443031443 in words is "twenty-eight trillion, seven hundred seventeen billion, four hundred forty-three million, thirty-one thousand, four hundred forty-three".