82713230181 has 12 divisors (see below), whose sum is σ = 119510576640. Its totient is φ = 55125579240.

The previous prime is 82713230143. The next prime is 82713230209. The reversal of 82713230181 is 18103231728.

82713230181 is a `hidden beast` number, since 8 + 271 + 3 + 2 + 301 + 81 = 666.

It is not a de Polignac number, because 82713230181 - 2¹¹ = 82713228133 is a prime.

It is a super-2 number, since 2×82713230181² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82713230681) 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 11 ways as a sum of consecutive naturals, for example, 1349541 + ... + 1409498.

It is an arithmetic number, because the mean of its divisors is an integer number (9959214720).

Almost surely, 2^82713230181 is an apocalyptic number.

It is an amenable number.

82713230181 is a deficient number, since it is larger than the sum of its proper divisors (36797346459).

82713230181 is a wasteful number, since it uses less digits than its factorization.

82713230181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762376 (or 2762373 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 82713230181 in words is "eighty-two billion, seven hundred thirteen million, two hundred thirty thousand, one hundred eighty-one".