442287386155223 has 4 divisors (see below), whose sum is σ = 505471298463120. Its totient is φ = 379103473847328.

The previous prime is 442287386155217. The next prime is 442287386155253. The reversal of 442287386155223 is 322551683782244.

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

It is a cyclic number.

It is not a de Polignac number, because 442287386155223 - 2²⁴ = 442287369378007 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 (442287386155253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31591956153938 + ... + 31591956153951.

It is an arithmetic number, because the mean of its divisors is an integer number (126367824615780).

Almost surely, 2^{442287386155223} is an apocalyptic number.

442287386155223 is a deficient number, since it is larger than the sum of its proper divisors (63183912307897).

442287386155223 is an equidigital number, since it uses as much as digits as its factorization.

442287386155223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63183912307896.

The product of its digits is 154828800, while the sum is 62.

The spelling of 442287386155223 in words is "four hundred forty-two trillion, two hundred eighty-seven billion, three hundred eighty-six million, one hundred fifty-five thousand, two hundred twenty-three".