68098968256 has 112 divisors (see below), whose sum is σ = 155328030720. Its totient is φ = 29296512000.

The previous prime is 68098968233. The next prime is 68098968319. The reversal of 68098968256 is 65286989086.

68098968256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 68098968191 and 68098968200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19674366 + ... + 19677826.

Almost surely, 2^68098968256 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 68098968256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77664015360).

68098968256 is an abundant number, since it is smaller than the sum of its proper divisors (87229062464).

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

68098968256 is a wasteful number, since it uses less digits than its factorization.

68098968256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 68098968256 in words is "sixty-eight billion, ninety-eight million, nine hundred sixty-eight thousand, two hundred fifty-six".