8189555221573 has 48 divisors (see below), whose sum is σ = 9208837209600. Its totient is φ = 7222398955200.

The previous prime is 8189555221559. The next prime is 8189555221619. The reversal of 8189555221573 is 3751225559818.

It is not a de Polignac number, because 8189555221573 - 2¹³ = 8189555213381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189555281573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1002266778 + ... + 1002274948.

It is an arithmetic number, because the mean of its divisors is an integer number (191850775200).

Almost surely, 2^{8189555221573} is an apocalyptic number.

It is an amenable number.

8189555221573 is a deficient number, since it is larger than the sum of its proper divisors (1019281988027).

8189555221573 is a wasteful number, since it uses less digits than its factorization.

8189555221573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650 (or 8597 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 61.

The spelling of 8189555221573 in words is "eight trillion, one hundred eighty-nine billion, five hundred fifty-five million, two hundred twenty-one thousand, five hundred seventy-three".