8164205877444 has 24 divisors (see below), whose sum is σ = 19050353397600. Its totient is φ = 2721324861504.

The previous prime is 8164205877431. The next prime is 8164205877473. The reversal of 8164205877444 is 4447785024618.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9195169 + ... + 10043880.

It is an arithmetic number, because the mean of its divisors is an integer number (793764724900).

Almost surely, 2^{8164205877444} is an apocalyptic number.

It is an amenable number.

8164205877444 is an abundant number, since it is smaller than the sum of its proper divisors (10886147520156).

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

8164205877444 is a wasteful number, since it uses less digits than its factorization.

8164205877444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19274419 (or 19274417 counting only the distinct ones).

The product of its (nonzero) digits is 48168960, while the sum is 60.

The spelling of 8164205877444 in words is "eight trillion, one hundred sixty-four billion, two hundred five million, eight hundred seventy-seven thousand, four hundred forty-four".