68208788643 has 8 divisors (see below), whose sum is σ = 92435954256. Its totient is φ = 44727074400.

The previous prime is 68208788633. The next prime is 68208788651. The reversal of 68208788643 is 34688780286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68208788643 - 2⁸ = 68208788387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68208788623) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 186362628 + ... + 186362993.

It is an arithmetic number, because the mean of its divisors is an integer number (11554494282).

Almost surely, 2^68208788643 is an apocalyptic number.

68208788643 is a deficient number, since it is larger than the sum of its proper divisors (24227165613).

68208788643 is a wasteful number, since it uses less digits than its factorization.

68208788643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372725685.

The product of its (nonzero) digits is 24772608, while the sum is 60.

The spelling of 68208788643 in words is "sixty-eight billion, two hundred eight million, seven hundred eighty-eight thousand, six hundred forty-three".