442344431511 has 32 divisors (see below), whose sum is σ = 713602656000. Its totient is φ = 269741785824.

The previous prime is 442344431489. The next prime is 442344431513. The reversal of 442344431511 is 115134443244.

It is a happy number.

442344431511 is a `hidden beast` number, since 4 + 42 + 34 + 44 + 31 + 511 = 666.

It is not a de Polignac number, because 442344431511 - 2¹¹ = 442344429463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442344431513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14851845 + ... + 14881598.

It is an arithmetic number, because the mean of its divisors is an integer number (22300083000).

Almost surely, 2^442344431511 is an apocalyptic number.

442344431511 is a deficient number, since it is larger than the sum of its proper divisors (271258224489).

442344431511 is a wasteful number, since it uses less digits than its factorization.

442344431511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29733500 (or 29733494 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 442344431511 its reverse (115134443244), we get a palindrome (557478874755).

The spelling of 442344431511 in words is "four hundred forty-two billion, three hundred forty-four million, four hundred thirty-one thousand, five hundred eleven".