82327866881 has 8 divisors (see below), whose sum is σ = 88665459624. Its totient is φ = 75990942720.

The previous prime is 82327866877. The next prime is 82327866893. The reversal of 82327866881 is 18866872328.

It can be written as a sum of positive squares in 4 ways, for example, as 4034790400 + 78293076481 = 63520^2 + 279809^2 .

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 82327866881 - 2² = 82327866877 is a prime.

It is a super-2 number, since 2×82327866881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 82327866881.

It is not an unprimeable number, because it can be changed into a prime (82327866851) 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 7 ways as a sum of consecutive naturals, for example, 105035 + ... + 419151.

It is an arithmetic number, because the mean of its divisors is an integer number (11083182453).

Almost surely, 2^82327866881 is an apocalyptic number.

It is an amenable number.

82327866881 is a deficient number, since it is larger than the sum of its proper divisors (6337592743).

82327866881 is a wasteful number, since it uses less digits than its factorization.

82327866881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334291.

The product of its digits is 12386304, while the sum is 59.

The spelling of 82327866881 in words is "eighty-two billion, three hundred twenty-seven million, eight hundred sixty-six thousand, eight hundred eighty-one".