1028543357178 has 80 divisors (see below), whose sum is σ = 2315798691360. Its totient is φ = 341199597024.

The previous prime is 1028543357159. The next prime is 1028543357183. The reversal of 1028543357178 is 8717533458201.

1028543357178 is a `hidden beast` number, since 1 + 0 + 2 + 85 + 43 + 357 + 178 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38533425 + ... + 38560107.

It is an arithmetic number, because the mean of its divisors is an integer number (28947483642).

Almost surely, 2^{1028543357178} is an apocalyptic number.

1028543357178 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028543357178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157899345680).

1028543357178 is an abundant number, since it is smaller than the sum of its proper divisors (1287255334182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028543357178 is a wasteful number, since it uses less digits than its factorization.

1028543357178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27833 (or 27824 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 1028543357178 in words is "one trillion, twenty-eight billion, five hundred forty-three million, three hundred fifty-seven thousand, one hundred seventy-eight".