671375322432 has 42 divisors (see below), whose sum is σ = 1924376142858. Its totient is φ = 223791773952.

The previous prime is 671375322379. The next prime is 671375322433. The reversal of 671375322432 is 234223573176.

671375322432 is a `hidden beast` number, since 6 + 7 + 1 + 375 + 32 + 243 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 489305846016 + 182069476416 = 699504^2 + 426696^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671375322433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 582790503 + ... + 582791654.

Almost surely, 2^671375322432 is an apocalyptic number.

It is an amenable number.

671375322432 is an abundant number, since it is smaller than the sum of its proper divisors (1253000820426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671375322432 is a wasteful number, since it uses less digits than its factorization.

671375322432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165582175 (or 1165582162 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The spelling of 671375322432 in words is "six hundred seventy-one billion, three hundred seventy-five million, three hundred twenty-two thousand, four hundred thirty-two".