68086646268646 has 64 divisors (see below), whose sum is σ = 113864055246720. Its totient is φ = 30424531737600.

The previous prime is 68086646268637. The next prime is 68086646268647. The reversal of 68086646268646 is 64686264668086.

It is a super-2 number, since 2×68086646268646² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1434705 + ... + 11757196.

It is an arithmetic number, because the mean of its divisors is an integer number (1779125863230).

Almost surely, 2^{68086646268646} is an apocalyptic number.

68086646268646 is a deficient number, since it is larger than the sum of its proper divisors (45777408978074).

68086646268646 is a wasteful number, since it uses less digits than its factorization.

68086646268646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13192081.

The product of its (nonzero) digits is 4586471424, while the sum is 76.

The spelling of 68086646268646 in words is "sixty-eight trillion, eighty-six billion, six hundred forty-six million, two hundred sixty-eight thousand, six hundred forty-six".