441926044561 has 4 divisors (see below), whose sum is σ = 441928145124. Its totient is φ = 441923944000.

The previous prime is 441926044559. The next prime is 441926044579. The reversal of 441926044561 is 165440629144.

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 357030150400 + 84895894161 = 597520^2 + 291369^2 .

It is a 3-Lehmer number, since φ(441926044561) divides (441926044561-1)³.

It is a cyclic number.

It is not a de Polignac number, because 441926044561 - 2¹ = 441926044559 is a prime.

It is a super-2 number, since 2×441926044561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (441926044531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694540 + ... + 1168861.

It is an arithmetic number, because the mean of its divisors is an integer number (110482036281).

Almost surely, 2^441926044561 is an apocalyptic number.

441926044561 is the 297297-th centered decagonal number.

It is an amenable number.

441926044561 is a deficient number, since it is larger than the sum of its proper divisors (2100563).

441926044561 is a wasteful number, since it uses less digits than its factorization.

441926044561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100562.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 441926044561 in words is "four hundred forty-one billion, nine hundred twenty-six million, forty-four thousand, five hundred sixty-one".