2644344966 has 8 divisors (see below), whose sum is σ = 5288689944. Its totient is φ = 881448320.

The previous prime is 2644344947. The next prime is 2644345027. The reversal of 2644344966 is 6694434462.

It is a sphenic number, since it is the product of 3 distinct primes.

2644344966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220362075 + ... + 220362086.

It is an arithmetic number, because the mean of its divisors is an integer number (661086243).

Almost surely, 2^2644344966 is an apocalyptic number.

2644344966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2644344966 is a wasteful number, since it uses less digits than its factorization.

2644344966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440724166.

The product of its digits is 2985984, while the sum is 48.

The square root of 2644344966 is about 51423.1948249037. The cubic root of 2644344966 is about 1382.8424514770.

The spelling of 2644344966 in words is "two billion, six hundred forty-four million, three hundred forty-four thousand, nine hundred sixty-six".