828456557143 has 4 divisors (see below), whose sum is σ = 828619612128. Its totient is φ = 828293502160.

The previous prime is 828456557113. The next prime is 828456557191. The reversal of 828456557143 is 341755654828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 828456557143 - 2⁵ = 828456557111 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 (828456557113) 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 3 ways as a sum of consecutive naturals, for example, 81519871 + ... + 81530032.

It is an arithmetic number, because the mean of its divisors is an integer number (207154903032).

Almost surely, 2^828456557143 is an apocalyptic number.

828456557143 is a deficient number, since it is larger than the sum of its proper divisors (163054985).

828456557143 is a wasteful number, since it uses less digits than its factorization.

828456557143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163054984.

The product of its digits is 32256000, while the sum is 58.

The spelling of 828456557143 in words is "eight hundred twenty-eight billion, four hundred fifty-six million, five hundred fifty-seven thousand, one hundred forty-three".