68247004260817 has 8 divisors (see below), whose sum is σ = 72261796545000. Its totient is φ = 64232241156864.

The previous prime is 68247004260811. The next prime is 68247004260829. The reversal of 68247004260817 is 71806240074286.

It can be written as a sum of positive squares in 4 ways, for example, as 19837011423376 + 48409992837441 = 4453876^2 + 6957729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68247004260817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68247004260811) 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, 2385442 + ... + 11924107.

It is an arithmetic number, because the mean of its divisors is an integer number (9032724568125).

Almost surely, 2^{68247004260817} is an apocalyptic number.

It is an amenable number.

68247004260817 is a deficient number, since it is larger than the sum of its proper divisors (4014792284183).

68247004260817 is a wasteful number, since it uses less digits than its factorization.

68247004260817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14590115.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 68247004260817 in words is "sixty-eight trillion, two hundred forty-seven billion, four million, two hundred sixty thousand, eight hundred seventeen".