68557585248 has 384 divisors, whose sum is σ = 217573171200. Its totient is φ = 20939212800.

The previous prime is 68557585237. The next prime is 68557585309. The reversal of 68557585248 is 84258575586.

It is a happy number.

68557585248 is a `hidden beast` number, since 6 + 8 + 5 + 5 + 7 + 585 + 2 + 48 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67146978 + ... + 67147998.

It is an arithmetic number, because the mean of its divisors is an integer number (566596800).

Almost surely, 2^68557585248 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 68557585248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108786585600).

68557585248 is an abundant number, since it is smaller than the sum of its proper divisors (149015585952).

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

68557585248 is a wasteful number, since it uses less digits than its factorization.

68557585248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1189 counting only the distinct ones).

The product of its digits is 107520000, while the sum is 63.

The spelling of 68557585248 in words is "sixty-eight billion, five hundred fifty-seven million, five hundred eighty-five thousand, two hundred forty-eight".