6394995726336 has 576 divisors, whose sum is σ = 22365862646400. Its totient is φ = 1799819771904.

The previous prime is 6394995726331. The next prime is 6394995726337. The reversal of 6394995726336 is 6336275994936.

6394995726336 is a `hidden beast` number, since 6 + 3 + 9 + 49 + 9 + 572 + 6 + 3 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6394995726331) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 181519155 + ... + 181554381.

It is an arithmetic number, because the mean of its divisors is an integer number (38829622650).

Almost surely, 2^{6394995726336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6394995726336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11182931323200).

6394995726336 is an abundant number, since it is smaller than the sum of its proper divisors (15970866920064).

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

6394995726336 is a wasteful number, since it uses less digits than its factorization.

6394995726336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35339 (or 35306 counting only the distinct ones).

The product of its digits is 1190427840, while the sum is 72.

The spelling of 6394995726336 in words is "six trillion, three hundred ninety-four billion, nine hundred ninety-five million, seven hundred twenty-six thousand, three hundred thirty-six".