442861274810168 has 8 divisors (see below), whose sum is σ = 830364890269080. Its totient is φ = 221430637405080.

The previous prime is 442861274810167. The next prime is 442861274810191. The reversal of 442861274810168 is 861018472168244.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×442861274810168² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 442861274810168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442861274810167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27678829675628 + ... + 27678829675643.

It is an arithmetic number, because the mean of its divisors is an integer number (103795611283635).

Almost surely, 2^{442861274810168} is an apocalyptic number.

It is an amenable number.

442861274810168 is a deficient number, since it is larger than the sum of its proper divisors (387503615458912).

442861274810168 is a wasteful number, since it uses less digits than its factorization.

442861274810168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55357659351277 (or 55357659351273 counting only the distinct ones).

The product of its (nonzero) digits is 33030144, while the sum is 62.

The spelling of 442861274810168 in words is "four hundred forty-two trillion, eight hundred sixty-one billion, two hundred seventy-four million, eight hundred ten thousand, one hundred sixty-eight".