68668224486480 has 60 divisors (see below), whose sum is σ = 230610787236180. Its totient is φ = 18311526529536.

The previous prime is 68668224486371. The next prime is 68668224486481. The reversal of 68668224486480 is 8468442286686.

68668224486480 is a `hidden beast` number, since 6 + 8 + 6 + 6 + 8 + 22 + 44 + 86 + 480 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26274686781456 + 42393537705024 = 5125884^2 + 6511032^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×68668224486480² (a number of 28 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 68668224486399 and 68668224486408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68668224486481) 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 11 ways as a sum of consecutive naturals, for example, 47686266285 + ... + 47686267724.

It is an arithmetic number, because the mean of its divisors is an integer number (3843513120603).

Almost surely, 2^{68668224486480} is an apocalyptic number.

68668224486480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68668224486480 is an abundant number, since it is smaller than the sum of its proper divisors (161942562749700).

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

68668224486480 is a wasteful number, since it uses less digits than its factorization.

68668224486480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95372534028 (or 95372534019 counting only the distinct ones).

The product of its (nonzero) digits is 1358954496, while the sum is 72.

The spelling of 68668224486480 in words is "sixty-eight trillion, six hundred sixty-eight billion, two hundred twenty-four million, four hundred eighty-six thousand, four hundred eighty".