8220044511844 has 81 divisors (see below), whose sum is σ = 16690124812851. Its totient is φ = 3539732086440.

The previous prime is 8220044511839. The next prime is 8220044511893. The reversal of 8220044511844 is 4481154400228.

The square root of 8220044511844 is 2867062.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 8220044511844.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 432633921667 + ... + 432633921685.

Almost surely, 2^{8220044511844} is an apocalyptic number.

8220044511844 is the 2867062-nd square number.

It is an amenable number.

8220044511844 is an abundant number, since it is smaller than the sum of its proper divisors (8470080301007).

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

8220044511844 is an frugal number, since it uses more digits than its factorization.

8220044511844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 32 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 43.

The spelling of 8220044511844 in words is "eight trillion, two hundred twenty billion, forty-four million, five hundred eleven thousand, eight hundred forty-four".