84227218197 has 8 divisors (see below), whose sum is σ = 113046686400. Its totient is φ = 55779614400.

The previous prime is 84227218169. The next prime is 84227218237. The reversal of 84227218197 is 79181272248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84227218197 - 2⁸ = 84227217941 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84227218297) by changing a digit.

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, 92965572 + ... + 92966477.

It is an arithmetic number, because the mean of its divisors is an integer number (14130835800).

Almost surely, 2^84227218197 is an apocalyptic number.

It is an amenable number.

84227218197 is a deficient number, since it is larger than the sum of its proper divisors (28819468203).

84227218197 is a wasteful number, since it uses less digits than its factorization.

84227218197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185932203.

The product of its digits is 903168, while the sum is 51.

The spelling of 84227218197 in words is "eighty-four billion, two hundred twenty-seven million, two hundred eighteen thousand, one hundred ninety-seven".