68664084705 has 24 divisors (see below), whose sum is σ = 125281840320. Its totient is φ = 34693431840.

The previous prime is 68664084689. The next prime is 68664084721. The reversal of 68664084705 is 50748046686.

It is an interprime number because it is at equal distance from previous prime (68664084689) and next prime (68664084721).

It is not a de Polignac number, because 68664084705 - 2⁴ = 68664084689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40153581 + ... + 40155290.

It is an arithmetic number, because the mean of its divisors is an integer number (5220076680).

Almost surely, 2^68664084705 is an apocalyptic number.

It is an amenable number.

68664084705 is a deficient number, since it is larger than the sum of its proper divisors (56617755615).

68664084705 is a wasteful number, since it uses less digits than its factorization.

68664084705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80308901 (or 80308898 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 68664084705 in words is "sixty-eight billion, six hundred sixty-four million, eighty-four thousand, seven hundred five".