442141156971 has 18 divisors (see below), whose sum is σ = 672274629260. Its totient is φ = 279241554816.

The previous prime is 442141156931. The next prime is 442141157023. The reversal of 442141156971 is 179651141244.

442141156971 is a `hidden beast` number, since 4 + 4 + 2 + 1 + 4 + 11 + 569 + 71 = 666.

It is not a de Polignac number, because 442141156971 - 2⁷ = 442141156843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442141156931) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8669755 + ... + 8720603.

Almost surely, 2^442141156971 is an apocalyptic number.

442141156971 is a deficient number, since it is larger than the sum of its proper divisors (230133472289).

442141156971 is an frugal number, since it uses more digits than its factorization.

442141156971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101723 (or 50871 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 442141156971 in words is "four hundred forty-two billion, one hundred forty-one million, one hundred fifty-six thousand, nine hundred seventy-one".