68798563056 has 400 divisors, whose sum is σ = 213413775168. Its totient is φ = 21349785600.

The previous prime is 68798563021. The next prime is 68798563103. The reversal of 68798563056 is 65036589786.

68798563056 is a `hidden beast` number, since 68 + 7 + 9 + 8 + 563 + 0 + 5 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 68798562984 and 68798563002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 285471096 + ... + 285471336.

Almost surely, 2^68798563056 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 68798563056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106706887584).

68798563056 is an abundant number, since it is smaller than the sum of its proper divisors (144615212112).

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

68798563056 is a wasteful number, since it uses less digits than its factorization.

68798563056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 68798563056 in words is "sixty-eight billion, seven hundred ninety-eight million, five hundred sixty-three thousand, fifty-six".