84871564500 has 48 divisors (see below), whose sum is σ = 247146000192. Its totient is φ = 22632416800.

The previous prime is 84871564429. The next prime is 84871564501. The reversal of 84871564500 is 546517848.

It is a self number, because there is not a number n which added to its sum of digits gives 84871564500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84871564501) 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, 28289022 + ... + 28292021.

It is an arithmetic number, because the mean of its divisors is an integer number (5148875004).

Almost surely, 2^84871564500 is an apocalyptic number.

It is an amenable number.

84871564500 is an abundant number, since it is smaller than the sum of its proper divisors (162274435692).

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

84871564500 is a wasteful number, since it uses less digits than its factorization.

84871564500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56581065 (or 56581053 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 84871564500 in words is "eighty-four billion, eight hundred seventy-one million, five hundred sixty-four thousand, five hundred".