845216576 has 56 divisors (see below), whose sum is σ = 1706880000. Its totient is φ = 415194624.

The previous prime is 845216563. The next prime is 845216579. The reversal of 845216576 is 675612548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845216579) 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 7 ways as a sum of consecutive naturals, for example, 1764305 + ... + 1764783.

It is an arithmetic number, because the mean of its divisors is an integer number (30480000).

Almost surely, 2^845216576 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 845216576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853440000).

845216576 is an abundant number, since it is smaller than the sum of its proper divisors (861663424).

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

845216576 is a wasteful number, since it uses less digits than its factorization.

845216576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 909 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 845216576 is about 29072.6086892800. The cubic root of 845216576 is about 945.4879579191.

The spelling of 845216576 in words is "eight hundred forty-five million, two hundred sixteen thousand, five hundred seventy-six".