6444004818 has 32 divisors (see below), whose sum is σ = 12969734976. Its totient is φ = 2134407168.

The previous prime is 6444004807. The next prime is 6444004823. The reversal of 6444004818 is 8184004446.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1193521 + ... + 1198907.

It is an arithmetic number, because the mean of its divisors is an integer number (405304218).

Almost surely, 2^6444004818 is an apocalyptic number.

6444004818 is an abundant number, since it is smaller than the sum of its proper divisors (6525730158).

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

6444004818 is a wasteful number, since it uses less digits than its factorization.

6444004818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6618.

The product of its (nonzero) digits is 98304, while the sum is 39.

The square root of 6444004818 is about 80274.5589710713. The cubic root of 6444004818 is about 1860.8810734974.

The spelling of 6444004818 in words is "six billion, four hundred forty-four million, four thousand, eight hundred eighteen".