671471043137531 has 16 divisors (see below), whose sum is σ = 826447083705600. Its totient is φ = 531260173791648.

The previous prime is 671471043137473. The next prime is 671471043137561. The reversal of 671471043137531 is 135731340174176.

It is not a de Polignac number, because 671471043137531 - 2¹⁰ = 671471043136507 is a prime.

It is a super-2 number, since 2×671471043137531² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (671471043137561) 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, 91003241 + ... + 98104698.

It is an arithmetic number, because the mean of its divisors is an integer number (51652942731600).

Almost surely, 2^{671471043137531} is an apocalyptic number.

671471043137531 is a deficient number, since it is larger than the sum of its proper divisors (154976040568069).

671471043137531 is a wasteful number, since it uses less digits than its factorization.

671471043137531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189146978.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 671471043137531 in words is "six hundred seventy-one trillion, four hundred seventy-one billion, forty-three million, one hundred thirty-seven thousand, five hundred thirty-one".