444538886444 has 12 divisors (see below), whose sum is σ = 778303058568. Its totient is φ = 222166584000.

The previous prime is 444538886381. The next prime is 444538886483. The reversal of 444538886444 is 444688835444.

It is a super-2 number, since 2×444538886444² (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 3 ways as a sum of consecutive naturals, for example, 25705082 + ... + 25722369.

It is an arithmetic number, because the mean of its divisors is an integer number (64858588214).

Almost surely, 2^444538886444 is an apocalyptic number.

It is an amenable number.

444538886444 is a deficient number, since it is larger than the sum of its proper divisors (333764172124).

444538886444 is a wasteful number, since it uses less digits than its factorization.

444538886444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51429616 (or 51429614 counting only the distinct ones).

The product of its digits is 188743680, while the sum is 62.

The spelling of 444538886444 in words is "four hundred forty-four billion, five hundred thirty-eight million, eight hundred eighty-six thousand, four hundred forty-four".