442002541671 has 12 divisors (see below), whose sum is σ = 640704119848. Its totient is φ = 293627128464.

The previous prime is 442002541663. The next prime is 442002541781. The reversal of 442002541671 is 176145200244.

442002541671 is a `hidden beast` number, since 4 + 42 + 0 + 0 + 2 + 541 + 6 + 71 = 666.

It is not a de Polignac number, because 442002541671 - 2³ = 442002541663 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 (442002541271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86766700 + ... + 86771793.

Almost surely, 2^442002541671 is an apocalyptic number.

442002541671 is a deficient number, since it is larger than the sum of its proper divisors (198701578177).

442002541671 is a wasteful number, since it uses less digits than its factorization.

442002541671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173538782 (or 173538779 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 442002541671 in words is "four hundred forty-two billion, two million, five hundred forty-one thousand, six hundred seventy-one".