68248361808 has 360 divisors, whose sum is σ = 219112712000. Its totient is φ = 20577395520.

The previous prime is 68248361801. The next prime is 68248361837. The reversal of 68248361808 is 80816384286.

68248361808 is a `hidden beast` number, since 6 + 82 + 483 + 6 + 1 + 80 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68248361801) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 342956493 + ... + 342956691.

Almost surely, 2^68248361808 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 68248361808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109556356000).

68248361808 is an abundant number, since it is smaller than the sum of its proper divisors (150864350192).

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

68248361808 is an equidigital number, since it uses as much as digits as its factorization.

68248361808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 68248361808 in words is "sixty-eight billion, two hundred forty-eight million, three hundred sixty-one thousand, eight hundred eight".