444065842581 has 8 divisors (see below), whose sum is σ = 617830737600. Its totient is φ = 283172421312.

The previous prime is 444065842541. The next prime is 444065842609. The reversal of 444065842581 is 185248560444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444065842581 - 2¹⁹ = 444065318293 is a prime.

It is a super-2 number, since 2×444065842581² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444065842501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217868356 + ... + 3217868493.

It is an arithmetic number, because the mean of its divisors is an integer number (77228842200).

Almost surely, 2^444065842581 is an apocalyptic number.

It is an amenable number.

444065842581 is a deficient number, since it is larger than the sum of its proper divisors (173764895019).

444065842581 is a wasteful number, since it uses less digits than its factorization.

444065842581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435736875.

The product of its (nonzero) digits is 4915200, while the sum is 51.

The spelling of 444065842581 in words is "four hundred forty-four billion, sixty-five million, eight hundred forty-two thousand, five hundred eighty-one".