68681823822 has 24 divisors (see below), whose sum is σ = 149758462776. Its totient is φ = 22748119056.

The previous prime is 68681823781. The next prime is 68681823839. The reversal of 68681823822 is 22832818686.

68681823822 is a `hidden beast` number, since 6 + 86 + 8 + 182 + 382 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12148948 + ... + 12154599.

It is an arithmetic number, because the mean of its divisors is an integer number (6239935949).

Almost surely, 2^68681823822 is an apocalyptic number.

68681823822 is an abundant number, since it is smaller than the sum of its proper divisors (81076638954).

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

68681823822 is a wasteful number, since it uses less digits than its factorization.

68681823822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24303712 (or 24303709 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 54.

The spelling of 68681823822 in words is "sixty-eight billion, six hundred eighty-one million, eight hundred twenty-three thousand, eight hundred twenty-two".