827520785628 has 24 divisors (see below), whose sum is σ = 1937704745088. Its totient is φ = 274865560176.

The previous prime is 827520785627. The next prime is 827520785723. The reversal of 827520785628 is 826587025728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827520785627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 121834176 + ... + 121840967.

It is an arithmetic number, because the mean of its divisors is an integer number (80737697712).

Almost surely, 2^827520785628 is an apocalyptic number.

It is an amenable number.

827520785628 is an abundant number, since it is smaller than the sum of its proper divisors (1110183959460).

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

827520785628 is a wasteful number, since it uses less digits than its factorization.

827520785628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243675433 (or 243675431 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 60.

The spelling of 827520785628 in words is "eight hundred twenty-seven billion, five hundred twenty million, seven hundred eighty-five thousand, six hundred twenty-eight".