442312463621 has 16 divisors (see below), whose sum is σ = 535427424000. Its totient is φ = 356695384320.

The previous prime is 442312463611. The next prime is 442312463627. The reversal of 442312463621 is 126364213244.

It is a cyclic number.

It is not a de Polignac number, because 442312463621 - 2²² = 442308269317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442312463627) 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, 333746 + ... + 998003.

It is an arithmetic number, because the mean of its divisors is an integer number (33464214000).

Almost surely, 2^442312463621 is an apocalyptic number.

It is an amenable number.

442312463621 is a deficient number, since it is larger than the sum of its proper divisors (93114960379).

442312463621 is a wasteful number, since it uses less digits than its factorization.

442312463621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334564.

The product of its digits is 165888, while the sum is 38.

Adding to 442312463621 its reverse (126364213244), we get a palindrome (568676676865).

The spelling of 442312463621 in words is "four hundred forty-two billion, three hundred twelve million, four hundred sixty-three thousand, six hundred twenty-one".