68647874686 has 32 divisors (see below), whose sum is σ = 105726044160. Its totient is φ = 33411553056.

The previous prime is 68647874671. The next prime is 68647874689.

68647874686 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68647874689) 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, 52044735 + ... + 52046053.

It is an arithmetic number, because the mean of its divisors is an integer number (3303938880).

Almost surely, 2^68647874686 is an apocalyptic number.

68647874686 is a deficient number, since it is larger than the sum of its proper divisors (37078169474).

68647874686 is a wasteful number, since it uses less digits than its factorization.

68647874686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968.

The product of its digits is 520224768, while the sum is 70.

The spelling of 68647874686 in words is "sixty-eight billion, six hundred forty-seven million, eight hundred seventy-four thousand, six hundred eighty-six".