71831661275671 has 16 divisors (see below), whose sum is σ = 82139891758848. Its totient is φ = 62227190692800.

The previous prime is 71831661275629. The next prime is 71831661275681. The reversal of 71831661275671 is 17657216613817.

It is not a de Polignac number, because 71831661275671 - 2¹¹ = 71831661273623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71831661275681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1851980331 + ... + 1852019116.

It is an arithmetic number, because the mean of its divisors is an integer number (5133743234928).

Almost surely, 2^{71831661275671} is an apocalyptic number.

71831661275671 is a deficient number, since it is larger than the sum of its proper divisors (10308230483177).

71831661275671 is a wasteful number, since it uses less digits than its factorization.

71831661275671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703999542.

The product of its digits is 17781120, while the sum is 61.

The spelling of 71831661275671 in words is "seventy-one trillion, eight hundred thirty-one billion, six hundred sixty-one million, two hundred seventy-five thousand, six hundred seventy-one".