67317828256 has 96 divisors (see below), whose sum is σ = 153154713600. Its totient is φ = 28530475776.

The previous prime is 67317828247. The next prime is 67317828283. The reversal of 67317828256 is 65282871376.

It is a super-2 number, since 2×67317828256² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67317828197 and 67317828206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7439671 + ... + 7448713.

It is an arithmetic number, because the mean of its divisors is an integer number (1595361600).

Almost surely, 2^67317828256 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 67317828256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76577356800).

67317828256 is an abundant number, since it is smaller than the sum of its proper divisors (85836885344).

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

67317828256 is a wasteful number, since it uses less digits than its factorization.

67317828256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426 (or 9418 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The spelling of 67317828256 in words is "sixty-seven billion, three hundred seventeen million, eight hundred twenty-eight thousand, two hundred fifty-six".