820482806648 has 32 divisors (see below), whose sum is σ = 1558724428800. Its totient is φ = 404828597472.

The previous prime is 820482806623. The next prime is 820482806651. The reversal of 820482806648 is 846608284028.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 820482806593 and 820482806602.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 815861 + ... + 1518747.

It is an arithmetic number, because the mean of its divisors is an integer number (48710138400).

Almost surely, 2^820482806648 is an apocalyptic number.

It is an amenable number.

820482806648 is a deficient number, since it is larger than the sum of its proper divisors (738241622152).

820482806648 is a wasteful number, since it uses less digits than its factorization.

820482806648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704819 (or 704815 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 820482806648 in words is "eight hundred twenty billion, four hundred eighty-two million, eight hundred six thousand, six hundred forty-eight".