83681711471 has 2 divisors, whose sum is σ = 83681711472. Its totient is φ = 83681711470.

The previous prime is 83681711441. The next prime is 83681711539. The reversal of 83681711471 is 17411718638.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83681711471 - 2²⁶ = 83614602607 is a prime.

It is a super-3 number, since 3×83681711471³ (a number of 34 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83681711441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41840855735 + 41840855736.

It is an arithmetic number, because the mean of its divisors is an integer number (41840855736).

Almost surely, 2^83681711471 is an apocalyptic number.

83681711471 is a deficient number, since it is larger than the sum of its proper divisors (1).

83681711471 is an equidigital number, since it uses as much as digits as its factorization.

83681711471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 47.

The spelling of 83681711471 in words is "eighty-three billion, six hundred eighty-one million, seven hundred eleven thousand, four hundred seventy-one".