68556755862 has 80 divisors (see below), whose sum is σ = 175925249280. Its totient is φ = 19547266032.

The previous prime is 68556755851. The next prime is 68556755893. The reversal of 68556755862 is 26855765586.

68556755862 is a `hidden beast` number, since 6 + 8 + 5 + 567 + 5 + 5 + 8 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 68556755862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 490189 + ... + 614327.

It is an arithmetic number, because the mean of its divisors is an integer number (2199065616).

Almost surely, 2^68556755862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68556755862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87962624640).

68556755862 is an abundant number, since it is smaller than the sum of its proper divisors (107368493418).

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

68556755862 is a wasteful number, since it uses less digits than its factorization.

68556755862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124647 (or 124638 counting only the distinct ones).

The product of its digits is 120960000, while the sum is 63.

The spelling of 68556755862 in words is "sixty-eight billion, five hundred fifty-six million, seven hundred fifty-five thousand, eight hundred sixty-two".