444213435554 has 16 divisors (see below), whose sum is σ = 761911920000. Its totient is φ = 190276393344.

The previous prime is 444213435551. The next prime is 444213435593. The reversal of 444213435554 is 455534312444.

It is a super-2 number, since 2×444213435554² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (444213435551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372054 + ... + 8424945.

It is an arithmetic number, because the mean of its divisors is an integer number (47619495000).

Almost surely, 2^444213435554 is an apocalyptic number.

444213435554 is a deficient number, since it is larger than the sum of its proper divisors (317698484446).

444213435554 is a wasteful number, since it uses less digits than its factorization.

444213435554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16798897.

The product of its digits is 2304000, while the sum is 44.

Adding to 444213435554 its reverse (455534312444), we get a palindrome (899747747998).

The spelling of 444213435554 in words is "four hundred forty-four billion, two hundred thirteen million, four hundred thirty-five thousand, five hundred fifty-four".