820324364867 has 16 divisors (see below), whose sum is σ = 940551927552. Its totient is φ = 700857849120.

The previous prime is 820324364833. The next prime is 820324364917. The reversal of 820324364867 is 768463423028.

It is a cyclic number.

It is not a de Polignac number, because 820324364867 - 2¹⁸ = 820324102723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (820324364267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6890348 + ... + 7008390.

It is an arithmetic number, because the mean of its divisors is an integer number (58784495472).

Almost surely, 2^820324364867 is an apocalyptic number.

820324364867 is a deficient number, since it is larger than the sum of its proper divisors (120227562685).

820324364867 is a wasteful number, since it uses less digits than its factorization.

820324364867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121258.

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 820324364867 in words is "eight hundred twenty billion, three hundred twenty-four million, three hundred sixty-four thousand, eight hundred sixty-seven".