441871220645811 has 48 divisors (see below), whose sum is σ = 720302927292000. Its totient is φ = 258562181445120.

The previous prime is 441871220645801. The next prime is 441871220645831. The reversal of 441871220645811 is 118546022178144.

441871220645811 is a `hidden beast` number, since 4 + 4 + 187 + 1 + 2 + 2 + 0 + 6 + 458 + 1 + 1 = 666.

It is not a de Polignac number, because 441871220645811 - 2²¹ = 441871218548659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (441871220645801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187248295 + ... + 189593423.

It is an arithmetic number, because the mean of its divisors is an integer number (15006310985250).

Almost surely, 2^{441871220645811} is an apocalyptic number.

441871220645811 is a deficient number, since it is larger than the sum of its proper divisors (278431706646189).

441871220645811 is a wasteful number, since it uses less digits than its factorization.

441871220645811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410804 (or 2410801 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The spelling of 441871220645811 in words is "four hundred forty-one trillion, eight hundred seventy-one billion, two hundred twenty million, six hundred forty-five thousand, eight hundred eleven".