444263279616 has 264 divisors, whose sum is σ = 1426053259904. Its totient is φ = 132285726720.

The previous prime is 444263279599. The next prime is 444263279639. The reversal of 444263279616 is 616972362444.

It is a super-2 number, since 2×444263279616² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3654240 + ... + 3773856.

Almost surely, 2^444263279616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444263279616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713026629952).

444263279616 is an abundant number, since it is smaller than the sum of its proper divisors (981789980288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444263279616 is a wasteful number, since it uses less digits than its factorization.

444263279616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119687 (or 119666 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 444263279616 in words is "four hundred forty-four billion, two hundred sixty-three million, two hundred seventy-nine thousand, six hundred sixteen".