6400064000384 has 32 divisors (see below), whose sum is σ = 12768110936400. Its totient is φ = 3195518510592.

The previous prime is 6400064000261. The next prime is 6400064000411. The reversal of 6400064000384 is 4830004600046.

It is a happy number.

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

It is a super-3 number, since 3×6400064000384³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 35170532 + ... + 35352035.

Almost surely, 2^{6400064000384} is an apocalyptic number.

6400064000384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6400064000384 is a deficient number, since it is larger than the sum of its proper divisors (6368046936016).

6400064000384 is an equidigital number, since it uses as much as digits as its factorization.

6400064000384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70523290 (or 70523278 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 6400064000384 in words is "six trillion, four hundred billion, sixty-four million, three hundred eighty-four", and thus it is an aban number.