8221858127 has 12 divisors (see below), whose sum is σ = 9568099800. Its totient is φ = 7044435216.

The previous prime is 8221858123. The next prime is 8221858133. The reversal of 8221858127 is 7218581228.

It is a happy number.

It is not a de Polignac number, because 8221858127 - 2² = 8221858123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8221858123) 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 11 ways as a sum of consecutive naturals, for example, 91988 + ... + 157814.

It is an arithmetic number, because the mean of its divisors is an integer number (797341650).

Almost surely, 2^8221858127 is an apocalyptic number.

8221858127 is a deficient number, since it is larger than the sum of its proper divisors (1346241673).

8221858127 is a wasteful number, since it uses less digits than its factorization.

8221858127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68390 (or 68383 counting only the distinct ones).

The product of its digits is 143360, while the sum is 44.

The square root of 8221858127 is about 90674.4623750260. The cubic root of 8221858127 is about 2018.3198563109.

The spelling of 8221858127 in words is "eight billion, two hundred twenty-one million, eight hundred fifty-eight thousand, one hundred twenty-seven".