828272337891 has 4 divisors (see below), whose sum is σ = 1104363117192. Its totient is φ = 552181558592.

The previous prime is 828272337889. The next prime is 828272337941. The reversal of 828272337891 is 198733272828.

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 828272337891 - 2¹ = 828272337889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (828272337821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138045389646 + ... + 138045389651.

It is an arithmetic number, because the mean of its divisors is an integer number (276090779298).

Almost surely, 2^828272337891 is an apocalyptic number.

828272337891 is a deficient number, since it is larger than the sum of its proper divisors (276090779301).

828272337891 is a wasteful number, since it uses less digits than its factorization.

828272337891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276090779300.

The product of its digits is 16257024, while the sum is 60.

The spelling of 828272337891 in words is "eight hundred twenty-eight billion, two hundred seventy-two million, three hundred thirty-seven thousand, eight hundred ninety-one".