8505628872 has 64 divisors (see below), whose sum is σ = 23213527680. Its totient is φ = 2581258752.

The previous prime is 8505628871. The next prime is 8505628969. The reversal of 8505628872 is 2788265058.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8505628871) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 163948 + ... + 209499.

It is an arithmetic number, because the mean of its divisors is an integer number (362711370).

Almost surely, 2^8505628872 is an apocalyptic number.

It is an amenable number.

8505628872 is an abundant number, since it is smaller than the sum of its proper divisors (14707898808).

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

8505628872 is a wasteful number, since it uses less digits than its factorization.

8505628872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373542 (or 373538 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The square root of 8505628872 is about 92225.9663652271. The cubic root of 8505628872 is about 2041.2779439872.

The spelling of 8505628872 in words is "eight billion, five hundred five million, six hundred twenty-eight thousand, eight hundred seventy-two".