804527215128 has 512 divisors, whose sum is σ = 2924348313600. Its totient is φ = 199122333696.

The previous prime is 804527215043. The next prime is 804527215147. The reversal of 804527215128 is 821512725408.

804527215128 is a `hidden beast` number, since 8 + 0 + 452 + 72 + 1 + 5 + 128 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23943876 + ... + 23977452.

It is an arithmetic number, because the mean of its divisors is an integer number (5711617800).

Almost surely, 2^804527215128 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 804527215128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462174156800).

804527215128 is an abundant number, since it is smaller than the sum of its proper divisors (2119821098472).

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

804527215128 is a wasteful number, since it uses less digits than its factorization.

804527215128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33688 (or 33678 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 804527215128 in words is "eight hundred four billion, five hundred twenty-seven million, two hundred fifteen thousand, one hundred twenty-eight".