84820363221 has 32 divisors (see below), whose sum is σ = 126264821760. Its totient is φ = 50216144000.

The previous prime is 84820363211. The next prime is 84820363223. The reversal of 84820363221 is 12236302848.

It is not a de Polignac number, because 84820363221 - 2⁹ = 84820362709 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 84820363221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84820363223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69796 + ... + 417746.

It is an arithmetic number, because the mean of its divisors is an integer number (3945775680).

Almost surely, 2^84820363221 is an apocalyptic number.

It is an amenable number.

84820363221 is a deficient number, since it is larger than the sum of its proper divisors (41444458539).

84820363221 is a wasteful number, since it uses less digits than its factorization.

84820363221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348137.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 84820363221 in words is "eighty-four billion, eight hundred twenty million, three hundred sixty-three thousand, two hundred twenty-one".