858222928712 has 36 divisors (see below), whose sum is σ = 1622567519955. Its totient is φ = 425567557296.

The previous prime is 858222928663. The next prime is 858222928741. The reversal of 858222928712 is 217829222858.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 429111464356 + 429111464356 = 655066^2 + 655066^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=655066.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 332772239 + ... + 332774817.

Almost surely, 2^858222928712 is an apocalyptic number.

It is an amenable number.

858222928712 is a deficient number, since it is larger than the sum of its proper divisors (764344591243).

858222928712 is an frugal number, since it uses more digits than its factorization.

858222928712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418 (or 2708 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The spelling of 858222928712 in words is "eight hundred fifty-eight billion, two hundred twenty-two million, nine hundred twenty-eight thousand, seven hundred twelve".