68717071786 has 32 divisors (see below), whose sum is σ = 113276952576. Its totient is φ = 31005030000.

The previous prime is 68717071777. The next prime is 68717071789.

68717071786 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 68717071786.

It is not an unprimeable number, because it can be changed into a prime (68717071789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758561 + ... + 1797211.

It is an arithmetic number, because the mean of its divisors is an integer number (3539904768).

Almost surely, 2^68717071786 is an apocalyptic number.

68717071786 is a deficient number, since it is larger than the sum of its proper divisors (44559880790).

68717071786 is a wasteful number, since it uses less digits than its factorization.

68717071786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39258.

The product of its (nonzero) digits is 5531904, while the sum is 58.

The spelling of 68717071786 in words is "sixty-eight billion, seven hundred seventeen million, seventy-one thousand, seven hundred eighty-six".