8215775232 has 288 divisors, whose sum is σ = 26631783360. Its totient is φ = 2205941760.

The previous prime is 8215775221. The next prime is 8215775233. The reversal of 8215775232 is 2325775128.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (8215775233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12428982 + ... + 12429642.

It is an arithmetic number, because the mean of its divisors is an integer number (92471470).

Almost surely, 2^8215775232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8215775232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13315891680).

8215775232 is an abundant number, since it is smaller than the sum of its proper divisors (18416008128).

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

8215775232 is a wasteful number, since it uses less digits than its factorization.

8215775232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 690 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 8215775232 is about 90640.9136758892. The cubic root of 8215775232 is about 2017.8219860175.

The spelling of 8215775232 in words is "eight billion, two hundred fifteen million, seven hundred seventy-five thousand, two hundred thirty-two".