68255188285 has 4 divisors (see below), whose sum is σ = 81906225948. Its totient is φ = 54604150624.

The previous prime is 68255188259. The next prime is 68255188297. The reversal of 68255188285 is 58288155286.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37235877156 + 31019311129 = 192966^2 + 176123^2 .

It is a cyclic number.

It is not a de Polignac number, because 68255188285 - 2²¹ = 68253091133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6825518824 + ... + 6825518833.

It is an arithmetic number, because the mean of its divisors is an integer number (20476556487).

Almost surely, 2^68255188285 is an apocalyptic number.

It is an amenable number.

68255188285 is a deficient number, since it is larger than the sum of its proper divisors (13651037663).

68255188285 is a wasteful number, since it uses less digits than its factorization.

68255188285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651037662.

The product of its digits is 12288000, while the sum is 58.

The spelling of 68255188285 in words is "sixty-eight billion, two hundred fifty-five million, one hundred eighty-eight thousand, two hundred eighty-five".