8642097642222 has 96 divisors (see below), whose sum is σ = 20641882060800. Its totient is φ = 2591251637760.

The previous prime is 8642097642209. The next prime is 8642097642281. The reversal of 8642097642222 is 2222467902468.

8642097642222 is a `hidden beast` number, since 8 + 6 + 4 + 209 + 7 + 6 + 422 + 2 + 2 = 666.

It is a super-3 number, since 3×8642097642222³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92122713 + ... + 92216475.

It is an arithmetic number, because the mean of its divisors is an integer number (215019604800).

Almost surely, 2^{8642097642222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8642097642222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10320941030400).

8642097642222 is an abundant number, since it is smaller than the sum of its proper divisors (11999784418578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8642097642222 is a wasteful number, since it uses less digits than its factorization.

8642097642222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98678 (or 98675 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 8642097642222 in words is "eight trillion, six hundred forty-two billion, ninety-seven million, six hundred forty-two thousand, two hundred twenty-two".