68787041686 has 16 divisors (see below), whose sum is σ = 112784410368. Its totient is φ = 31204671400.

The previous prime is 68787041669. The next prime is 68787041711. The reversal of 68787041686 is 68614078786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3096970 + ... + 3119101.

It is an arithmetic number, because the mean of its divisors is an integer number (7049025648).

Almost surely, 2^68787041686 is an apocalyptic number.

68787041686 is a deficient number, since it is larger than the sum of its proper divisors (43997368682).

68787041686 is a wasteful number, since it uses less digits than its factorization.

68787041686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216587.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 68787041686 in words is "sixty-eight billion, seven hundred eighty-seven million, forty-one thousand, six hundred eighty-six".