442154320999 has 16 divisors (see below), whose sum is σ = 465993068544. Its totient is φ = 418721133600.

The previous prime is 442154320997. The next prime is 442154321017. The reversal of 442154320999 is 999023451244.

It is a cyclic number.

It is not a de Polignac number, because 442154320999 - 2¹ = 442154320997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442154320997) 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, 688417 + ... + 1165429.

It is an arithmetic number, because the mean of its divisors is an integer number (29124566784).

Almost surely, 2^442154320999 is an apocalyptic number.

442154320999 is a deficient number, since it is larger than the sum of its proper divisors (23838747545).

442154320999 is a wasteful number, since it uses less digits than its factorization.

442154320999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477438.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 442154320999 in words is "four hundred forty-two billion, one hundred fifty-four million, three hundred twenty thousand, nine hundred ninety-nine".