6444053880 has 64 divisors (see below), whose sum is σ = 21089635200. Its totient is φ = 1562194560.

The previous prime is 6444053873. The next prime is 6444053887. The reversal of 6444053880 is 883504446.

It is an interprime number because it is at equal distance from previous prime (6444053873) and next prime (6444053887).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444053887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2439610 + ... + 2442249.

It is an arithmetic number, because the mean of its divisors is an integer number (329525550).

Almost surely, 2^6444053880 is an apocalyptic number.

6444053880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6444053880 is an abundant number, since it is smaller than the sum of its proper divisors (14645581320).

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

6444053880 is a wasteful number, since it uses less digits than its factorization.

6444053880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881884 (or 4881880 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 6444053880 is about 80274.8645592131. The cubic root of 6444053880 is about 1860.8857961463.

The spelling of 6444053880 in words is "six billion, four hundred forty-four million, fifty-three thousand, eight hundred eighty".