68305420668014 has 16 divisors (see below), whose sum is σ = 104392580347440. Its totient is φ = 33507909651840.

The previous prime is 68305420668013. The next prime is 68305420668031. The reversal of 68305420668014 is 41086602450386.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68305420668013) 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, 4856309 + ... + 12656799.

It is an arithmetic number, because the mean of its divisors is an integer number (6524536271715).

Almost surely, 2^{68305420668014} is an apocalyptic number.

68305420668014 is a deficient number, since it is larger than the sum of its proper divisors (36087159679426).

68305420668014 is a wasteful number, since it uses less digits than its factorization.

68305420668014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883155.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 68305420668014 in words is "sixty-eight trillion, three hundred five billion, four hundred twenty million, six hundred sixty-eight thousand, fourteen".