82395685281 has 32 divisors (see below), whose sum is σ = 138867866368. Its totient is φ = 42286821120.

The previous prime is 82395685243. The next prime is 82395685327. The reversal of 82395685281 is 18258659328.

It is not a de Polignac number, because 82395685281 - 2¹⁴ = 82395668897 is a prime.

It is a super-2 number, since 2×82395685281² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82395685481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4068490 + ... + 4088691.

It is an arithmetic number, because the mean of its divisors is an integer number (4339620824).

Almost surely, 2^82395685281 is an apocalyptic number.

It is an amenable number.

82395685281 is a deficient number, since it is larger than the sum of its proper divisors (56472181087).

82395685281 is a wasteful number, since it uses less digits than its factorization.

82395685281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157241.

The product of its digits is 8294400, while the sum is 57.

The spelling of 82395685281 in words is "eighty-two billion, three hundred ninety-five million, six hundred eighty-five thousand, two hundred eighty-one".