820789550014 has 16 divisors (see below), whose sum is σ = 1407079749600. Its totient is φ = 351763962624.

The previous prime is 820789549831. The next prime is 820789550023. The reversal of 820789550014 is 410055987028.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 820789550014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2521842 + ... + 2828650.

It is an arithmetic number, because the mean of its divisors is an integer number (87942484350).

Almost surely, 2^820789550014 is an apocalyptic number.

820789550014 is a deficient number, since it is larger than the sum of its proper divisors (586290199586).

820789550014 is a wasteful number, since it uses less digits than its factorization.

820789550014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497907.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 820789550014 in words is "eight hundred twenty billion, seven hundred eighty-nine million, five hundred fifty thousand, fourteen".