81682882311 has 8 divisors (see below), whose sum is σ = 114642641920. Its totient is φ = 51589188792.

The previous prime is 81682882271. The next prime is 81682882321. The reversal of 81682882311 is 11328828618.

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

It is a de Polignac number, because none of the positive numbers 2^k-81682882311 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 (81682882321) 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 7 ways as a sum of consecutive naturals, for example, 716516455 + ... + 716516568.

It is an arithmetic number, because the mean of its divisors is an integer number (14330330240).

Almost surely, 2^81682882311 is an apocalyptic number.

81682882311 is a deficient number, since it is larger than the sum of its proper divisors (32959759609).

81682882311 is a wasteful number, since it uses less digits than its factorization.

81682882311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433033045.

The product of its digits is 294912, while the sum is 48.

The spelling of 81682882311 in words is "eighty-one billion, six hundred eighty-two million, eight hundred eighty-two thousand, three hundred eleven".