6718385053536 has 192 divisors, whose sum is σ = 20017095840000. Its totient is φ = 1955932932096.

The previous prime is 6718385053477. The next prime is 6718385053537. The reversal of 6718385053536 is 6353505838176.

It is a super-2 number, since 2×6718385053536² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6718385053536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6718385053537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18720715 + ... + 19076213.

It is an arithmetic number, because the mean of its divisors is an integer number (104255707500).

Almost surely, 2^{6718385053536} 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 6718385053536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10008547920000).

6718385053536 is an abundant number, since it is smaller than the sum of its proper divisors (13298710786464).

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

6718385053536 is a wasteful number, since it uses less digits than its factorization.

6718385053536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356341 (or 356333 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 6718385053536 in words is "six trillion, seven hundred eighteen billion, three hundred eighty-five million, fifty-three thousand, five hundred thirty-six".