6321440424064 has 32 divisors (see below), whose sum is σ = 12752905939200. Its totient is φ = 3120711090432.

The previous prime is 6321440424059. The next prime is 6321440424097. The reversal of 6321440424064 is 4604240441236.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312561112 + ... + 312581335.

It is an arithmetic number, because the mean of its divisors is an integer number (398528310600).

Almost surely, 2^{6321440424064} is an apocalyptic number.

6321440424064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6321440424064 is an abundant number, since it is smaller than the sum of its proper divisors (6431465515136).

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

6321440424064 is an equidigital number, since it uses as much as digits as its factorization.

6321440424064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625142540 (or 625142528 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 6321440424064 in words is "six trillion, three hundred twenty-one billion, four hundred forty million, four hundred twenty-four thousand, sixty-four".