6404031446560 has 48 divisors (see below), whose sum is σ = 16504935596352. Its totient is φ = 2328738707200.

The previous prime is 6404031446513. The next prime is 6404031446587. The reversal of 6404031446560 is 656441304046.

It is a super-2 number, since 2×6404031446560² (a number of 26 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1819325356 + ... + 1819328875.

It is an arithmetic number, because the mean of its divisors is an integer number (343852824924).

Almost surely, 2^{6404031446560} is an apocalyptic number.

It is an amenable number.

6404031446560 is an abundant number, since it is smaller than the sum of its proper divisors (10100904149792).

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

6404031446560 is a wasteful number, since it uses less digits than its factorization.

6404031446560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638654257 (or 3638654249 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 6404031446560 in words is "six trillion, four hundred four billion, thirty-one million, four hundred forty-six thousand, five hundred sixty".