820808282582 has 32 divisors (see below), whose sum is σ = 1289096999424. Its totient is φ = 391231209600.

The previous prime is 820808282519. The next prime is 820808282603. The reversal of 820808282582 is 285282808028.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42016157 + ... + 42035687.

It is an arithmetic number, because the mean of its divisors is an integer number (40284281232).

Almost surely, 2^820808282582 is an apocalyptic number.

820808282582 is a deficient number, since it is larger than the sum of its proper divisors (468288716842).

820808282582 is a wasteful number, since it uses less digits than its factorization.

820808282582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22604.

The product of its (nonzero) digits is 2621440, while the sum is 53.

The spelling of 820808282582 in words is "eight hundred twenty billion, eight hundred eight million, two hundred eighty-two thousand, five hundred eighty-two".