68685522248 has 180 divisors, whose sum is σ = 157830145785. Its totient is φ = 28020081600.

The previous prime is 68685522239. The next prime is 68685522259. The reversal of 68685522248 is 84222558686.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 46525627204 + 22159895044 = 215698^2 + 148862^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185318.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68685522193 and 68685522202.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1125992138 + ... + 1125992198.

Almost surely, 2^68685522248 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 68685522248

68685522248 is an abundant number, since it is smaller than the sum of its proper divisors (89144623537).

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

68685522248 is an frugal number, since it uses more digits than its factorization.

68685522248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 101 counting only the distinct ones).

The product of its digits is 14745600, while the sum is 56.

The spelling of 68685522248 in words is "sixty-eight billion, six hundred eighty-five million, five hundred twenty-two thousand, two hundred forty-eight".