68686508562 has 32 divisors (see below), whose sum is σ = 165260774400. Its totient is φ = 18591836688.

The previous prime is 68686508489. The next prime is 68686508563. The reversal of 68686508562 is 26580568686.

It is a junction number, because it is equal to n+sod(n) for n = 68686508496 and 68686508505.

It is not an unprimeable number, because it can be changed into a prime (68686508563) 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 15 ways as a sum of consecutive naturals, for example, 43035862 + ... + 43037457.

It is an arithmetic number, because the mean of its divisors is an integer number (5164399200).

Almost surely, 2^68686508562 is an apocalyptic number.

68686508562 is an abundant number, since it is smaller than the sum of its proper divisors (96574265838).

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

68686508562 is a wasteful number, since it uses less digits than its factorization.

68686508562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86073350.

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 68686508562 in words is "sixty-eight billion, six hundred eighty-six million, five hundred eight thousand, five hundred sixty-two".