442664068486 has 4 divisors (see below), whose sum is σ = 663996102732. Its totient is φ = 221332034242.

The previous prime is 442664068393. The next prime is 442664068489. The reversal of 442664068486 is 684860466244.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 442664068486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442664068489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110666017120 + ... + 110666017123.

It is an arithmetic number, because the mean of its divisors is an integer number (165999025683).

Almost surely, 2^442664068486 is an apocalyptic number.

442664068486 is a deficient number, since it is larger than the sum of its proper divisors (221332034246).

442664068486 is a wasteful number, since it uses less digits than its factorization.

442664068486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221332034245.

The product of its (nonzero) digits is 42467328, while the sum is 58.

The spelling of 442664068486 in words is "four hundred forty-two billion, six hundred sixty-four million, sixty-eight thousand, four hundred eighty-six".