444444468888855 has 128 divisors (see below), whose sum is σ = 808421990400000. Its totient is φ = 207287128097280.

The previous prime is 444444468888851. The next prime is 444444468888857. The reversal of 444444468888855 is 558888864444444.

It is not a de Polignac number, because 444444468888855 - 2² = 444444468888851 is a prime.

It is a super-2 number, since 2×444444468888855² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444444468888851) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 379415110 + ... + 380584700.

It is an arithmetic number, because the mean of its divisors is an integer number (6315796800000).

Almost surely, 2^{444444468888855} is an apocalyptic number.

444444468888855 is a deficient number, since it is larger than the sum of its proper divisors (363977521511145).

444444468888855 is a wasteful number, since it uses less digits than its factorization.

444444468888855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171669.

The product of its digits is 80530636800, while the sum is 84.

The spelling of 444444468888855 in words is "four hundred forty-four trillion, four hundred forty-four billion, four hundred sixty-eight million, eight hundred eighty-eight thousand, eight hundred fifty-five".