82543748589 has 12 divisors (see below), whose sum is σ = 119232605856. Its totient is φ = 55027897992.

The previous prime is 82543748533. The next prime is 82543748641. The reversal of 82543748589 is 98584734528.

82543748589 is a `hidden beast` number, since 8 + 2 + 5 + 4 + 3 + 7 + 48 + 589 = 666.

It is not a de Polignac number, because 82543748589 - 2¹⁹ = 82543224301 is a prime.

It is a super-2 number, since 2×82543748589² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82543741589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474264 + ... + 624510.

It is an arithmetic number, because the mean of its divisors is an integer number (9936050488).

Almost surely, 2^82543748589 is an apocalyptic number.

It is an amenable number.

82543748589 is a deficient number, since it is larger than the sum of its proper divisors (36688857267).

82543748589 is a wasteful number, since it uses less digits than its factorization.

82543748589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211296 (or 211293 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 63.

The spelling of 82543748589 in words is "eighty-two billion, five hundred forty-three million, seven hundred forty-eight thousand, five hundred eighty-nine".