68255188278 has 48 divisors (see below), whose sum is σ = 143084200896. Its totient is φ = 21702388960.

The previous prime is 68255188259. The next prime is 68255188297. The reversal of 68255188278 is 87288155286.

It is an interprime number because it is at equal distance from previous prime (68255188259) and next prime (68255188297).

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 337333 + ... + 500303.

It is an arithmetic number, because the mean of its divisors is an integer number (2980920852).

Almost surely, 2^68255188278 is an apocalyptic number.

68255188278 is an abundant number, since it is smaller than the sum of its proper divisors (74829012618).

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

68255188278 is a wasteful number, since it uses less digits than its factorization.

68255188278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163117 (or 163088 counting only the distinct ones).

The product of its digits is 17203200, while the sum is 60.

The spelling of 68255188278 in words is "sixty-eight billion, two hundred fifty-five million, one hundred eighty-eight thousand, two hundred seventy-eight".