8211974444 has 6 divisors (see below), whose sum is σ = 14370955284. Its totient is φ = 4105987220.

The previous prime is 8211974437. The next prime is 8211974447. The reversal of 8211974444 is 4444791128.

It is a junction number, because it is equal to n+sod(n) for n = 8211974395 and 8211974404.

It is not an unprimeable number, because it can be changed into a prime (8211974447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026496802 + ... + 1026496809.

It is an arithmetic number, because the mean of its divisors is an integer number (2395159214).

Almost surely, 2^8211974444 is an apocalyptic number.

It is an amenable number.

8211974444 is a deficient number, since it is larger than the sum of its proper divisors (6158980840).

8211974444 is a wasteful number, since it uses less digits than its factorization.

8211974444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052993615 (or 2052993613 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 8211974444 is about 90619.9450672974. The cubic root of 8211974444 is about 2017.5107759232.

The spelling of 8211974444 in words is "eight billion, two hundred eleven million, nine hundred seventy-four thousand, four hundred forty-four".