6828310891 has 4 divisors (see below), whose sum is σ = 7012859872. Its totient is φ = 6643761912.

The previous prime is 6828310813. The next prime is 6828310927. The reversal of 6828310891 is 1980138286.

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 6828310891 - 2²¹ = 6826213739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6828317891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92274435 + ... + 92274508.

It is an arithmetic number, because the mean of its divisors is an integer number (1753214968).

Almost surely, 2^6828310891 is an apocalyptic number.

6828310891 is a deficient number, since it is larger than the sum of its proper divisors (184548981).

6828310891 is a wasteful number, since it uses less digits than its factorization.

6828310891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184548980.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 6828310891 is about 82633.5942035683. The cubic root of 6828310891 is about 1897.1620504430.

The spelling of 6828310891 in words is "six billion, eight hundred twenty-eight million, three hundred ten thousand, eight hundred ninety-one".