68500107173651 has 2 divisors, whose sum is σ = 68500107173652. Its totient is φ = 68500107173650.

The previous prime is 68500107173591. The next prime is 68500107173699. The reversal of 68500107173651 is 15637170100586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68500107173651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68500107173651.

It is not a weakly prime, because it can be changed into another prime (68500107113651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34250053586825 + 34250053586826.

It is an arithmetic number, because the mean of its divisors is an integer number (34250053586826).

Almost surely, 2^{68500107173651} is an apocalyptic number.

68500107173651 is a deficient number, since it is larger than the sum of its proper divisors (1).

68500107173651 is an equidigital number, since it uses as much as digits as its factorization.

68500107173651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 68500107173651 in words is "sixty-eight trillion, five hundred billion, one hundred seven million, one hundred seventy-three thousand, six hundred fifty-one".