82316557189 has 2 divisors, whose sum is σ = 82316557190. Its totient is φ = 82316557188.

The previous prime is 82316557171. The next prime is 82316557283. The reversal of 82316557189 is 98175561328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48448412100 + 33868145089 = 220110^2 + 184033^2 .

It is a cyclic number.

It is not a de Polignac number, because 82316557189 - 2⁷ = 82316557061 is a prime.

It is a super-3 number, since 3×82316557189³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82316557489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41158278594 + 41158278595.

It is an arithmetic number, because the mean of its divisors is an integer number (41158278595).

Almost surely, 2^82316557189 is an apocalyptic number.

It is an amenable number.

82316557189 is a deficient number, since it is larger than the sum of its proper divisors (1).

82316557189 is an equidigital number, since it uses as much as digits as its factorization.

82316557189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The spelling of 82316557189 in words is "eighty-two billion, three hundred sixteen million, five hundred fifty-seven thousand, one hundred eighty-nine".