8215334844 has 24 divisors (see below), whose sum is σ = 19173555408. Its totient is φ = 2737810560.

The previous prime is 8215334839. The next prime is 8215334891. The reversal of 8215334844 is 4484335128.

It is a junction number, because it is equal to n+sod(n) for n = 8215334796 and 8215334805.

It is a congruent number.

It is an unprimeable number.

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, 23787 + ... + 130370.

It is an arithmetic number, because the mean of its divisors is an integer number (798898142).

Almost surely, 2^8215334844 is an apocalyptic number.

It is an amenable number.

8215334844 is an abundant number, since it is smaller than the sum of its proper divisors (10958220564).

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

8215334844 is a wasteful number, since it uses less digits than its factorization.

8215334844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158605 (or 158603 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 8215334844 is about 90638.4843430207. The cubic root of 8215334844 is about 2017.7859317828.

The spelling of 8215334844 in words is "eight billion, two hundred fifteen million, three hundred thirty-four thousand, eight hundred forty-four".