180042971641 has 4 divisors (see below), whose sum is σ = 193892431012. Its totient is φ = 166193512272.

The previous prime is 180042971623. The next prime is 180042971651. The reversal of 180042971641 is 146179240081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12209366016 + 167833605625 = 110496^2 + 409675^2 .

It is a cyclic number.

It is not a de Polignac number, because 180042971641 - 2⁵ = 180042971609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180042971651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6924729666 + ... + 6924729691.

It is an arithmetic number, because the mean of its divisors is an integer number (48473107753).

Almost surely, 2^180042971641 is an apocalyptic number.

It is an amenable number.

180042971641 is a deficient number, since it is larger than the sum of its proper divisors (13849459371).

180042971641 is a wasteful number, since it uses less digits than its factorization.

180042971641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13849459370.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 180042971641 in words is "one hundred eighty billion, forty-two million, nine hundred seventy-one thousand, six hundred forty-one".