68235653286 has 128 divisors (see below), whose sum is σ = 165962649600. Its totient is φ = 20688099840.

The previous prime is 68235653279. The next prime is 68235653309.

68235653286 is a `hidden beast` number, since 6 + 8 + 2 + 356 + 5 + 3 + 286 = 666.

68235653286 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×68235653286² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30420481 + ... + 30422723.

It is an arithmetic number, because the mean of its divisors is an integer number (1296583200).

Almost surely, 2^68235653286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68235653286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82981324800).

68235653286 is an abundant number, since it is smaller than the sum of its proper divisors (97726996314).

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

68235653286 is a wasteful number, since it uses less digits than its factorization.

68235653286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3365 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The spelling of 68235653286 in words is "sixty-eight billion, two hundred thirty-five million, six hundred fifty-three thousand, two hundred eighty-six".