2644228004480 has 32 divisors (see below), whose sum is σ = 6321357574740. Its totient is φ = 1057691201536.

The previous prime is 2644228004479. The next prime is 2644228004497. The reversal of 2644228004480 is 844008224462.

It can be written as a sum of positive squares in 2 ways, for example, as 2352100726336 + 292127278144 = 1533656^2 + 540488^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2065802489 + ... + 2065803768.

Almost surely, 2^{2644228004480} is an apocalyptic number.

2644228004480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2644228004480 is an abundant number, since it is smaller than the sum of its proper divisors (3677129570260).

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

2644228004480 is an equidigital number, since it uses as much as digits as its factorization.

2644228004480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131606276 (or 4131606264 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 44.

The spelling of 2644228004480 in words is "two trillion, six hundred forty-four billion, two hundred twenty-eight million, four thousand, four hundred eighty".