82471855057589 has 8 divisors (see below), whose sum is σ = 82597329668568. Its totient is φ = 82346382581760.

The previous prime is 82471855057561. The next prime is 82471855057601. The reversal of 82471855057589 is 98575055817428.

It can be written as a sum of positive squares in 4 ways, for example, as 14075928204100 + 68395926853489 = 3751790^2 + 8270183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82471855057589 - 2²⁴ = 82471838280373 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 (82471855057519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87907109 + ... + 88840325.

It is an arithmetic number, because the mean of its divisors is an integer number (10324666208571).

Almost surely, 2^{82471855057589} is an apocalyptic number.

It is an amenable number.

82471855057589 is a deficient number, since it is larger than the sum of its proper divisors (125474610979).

82471855057589 is a wasteful number, since it uses less digits than its factorization.

82471855057589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067575.

The product of its (nonzero) digits is 1128960000, while the sum is 74.

The spelling of 82471855057589 in words is "eighty-two trillion, four hundred seventy-one billion, eight hundred fifty-five million, fifty-seven thousand, five hundred eighty-nine".