68286051856 has 45 divisors (see below), whose sum is σ = 145449796303. Its totient is φ = 31033888160.

The previous prime is 68286051773. The next prime is 68286051931. The reversal of 68286051856 is 65815068286.

The square root of 68286051856 is 261316.

It is a perfect power (a square), and thus also a powerful number.

68286051856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68286051797 and 68286051806.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11494935 + ... + 11500873.

Almost surely, 2^68286051856 is an apocalyptic number.

68286051856 is the 261316-th square number.

It is an amenable number.

68286051856 is an abundant number, since it is smaller than the sum of its proper divisors (77163744447).

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

68286051856 is an frugal number, since it uses more digits than its factorization.

68286051856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11908 (or 5952 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 68286051856 in words is "sixty-eight billion, two hundred eighty-six million, fifty-one thousand, eight hundred fifty-six".