68086646268648 has 64 divisors (see below), whose sum is σ = 194629247055360. Its totient is φ = 19443730305216.

The previous prime is 68086646268647. The next prime is 68086646268653. The reversal of 68086646268648 is 84686264668086.

It is a super-2 number, since 2×68086646268648² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68086646268647) 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, 99629286 + ... + 100310357.

It is an arithmetic number, because the mean of its divisors is an integer number (3041081985240).

Almost surely, 2^{68086646268648} is an apocalyptic number.

It is an amenable number.

68086646268648 is an abundant number, since it is smaller than the sum of its proper divisors (126542600786712).

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

68086646268648 is a wasteful number, since it uses less digits than its factorization.

68086646268648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199941686 (or 199941682 counting only the distinct ones).

The product of its (nonzero) digits is 6115295232, while the sum is 78.

The spelling of 68086646268648 in words is "sixty-eight trillion, eighty-six billion, six hundred forty-six million, two hundred sixty-eight thousand, six hundred forty-eight".