442509866485 has 16 divisors (see below), whose sum is σ = 539198899200. Its totient is φ = 348574277376.

The previous prime is 442509866483. The next prime is 442509866537. The reversal of 442509866485 is 584668905244.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 442509866485 - 2¹ = 442509866483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442509866483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381300 + ... + 1671229.

It is an arithmetic number, because the mean of its divisors is an integer number (33699931200).

Almost surely, 2^442509866485 is an apocalyptic number.

It is an amenable number.

442509866485 is a deficient number, since it is larger than the sum of its proper divisors (96689032715).

442509866485 is a wasteful number, since it uses less digits than its factorization.

442509866485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052980.

The product of its (nonzero) digits is 66355200, while the sum is 61.

The spelling of 442509866485 in words is "four hundred forty-two billion, five hundred nine million, eight hundred sixty-six thousand, four hundred eighty-five".