68686874682 has 16 divisors (see below), whose sum is σ = 137596404672. Its totient is φ = 22858515680.

The previous prime is 68686874657. The next prime is 68686874687. The reversal of 68686874682 is 28647868686.

It is a happy number.

It is a super-2 number, since 2×68686874682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68686874687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9273294 + ... + 9280697.

It is an arithmetic number, because the mean of its divisors is an integer number (8599775292).

Almost surely, 2^68686874682 is an apocalyptic number.

68686874682 is an abundant number, since it is smaller than the sum of its proper divisors (68909529990).

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

68686874682 is a wasteful number, since it uses less digits than its factorization.

68686874682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18554613.

The product of its digits is 297271296, while the sum is 69.

The spelling of 68686874682 in words is "sixty-eight billion, six hundred eighty-six million, eight hundred seventy-four thousand, six hundred eighty-two".