444194673818 has 16 divisors (see below), whose sum is σ = 762070127040. Its totient is φ = 190220760096.

The previous prime is 444194673787. The next prime is 444194673827. The reversal of 444194673818 is 818376491444.

It is a super-3 number, since 3×444194673818³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12346883 + ... + 12382806.

It is an arithmetic number, because the mean of its divisors is an integer number (47629382940).

Almost surely, 2^444194673818 is an apocalyptic number.

444194673818 is a deficient number, since it is larger than the sum of its proper divisors (317875453222).

444194673818 is a wasteful number, since it uses less digits than its factorization.

444194673818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24730981.

The product of its digits is 18579456, while the sum is 59.

The spelling of 444194673818 in words is "four hundred forty-four billion, one hundred ninety-four million, six hundred seventy-three thousand, eight hundred eighteen".