68072358593 has 2 divisors, whose sum is σ = 68072358594. Its totient is φ = 68072358592.

The previous prime is 68072358577. The next prime is 68072358611. The reversal of 68072358593 is 39585327086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39923236864 + 28149121729 = 199808^2 + 167777^2 .

It is a cyclic number.

It is not a de Polignac number, because 68072358593 - 2⁴ = 68072358577 is a prime.

It is not a weakly prime, because it can be changed into another prime (68072318593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34036179296 + 34036179297.

It is an arithmetic number, because the mean of its divisors is an integer number (34036179297).

Almost surely, 2^68072358593 is an apocalyptic number.

It is an amenable number.

68072358593 is a deficient number, since it is larger than the sum of its proper divisors (1).

68072358593 is an equidigital number, since it uses as much as digits as its factorization.

68072358593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 68072358593 in words is "sixty-eight billion, seventy-two million, three hundred fifty-eight thousand, five hundred ninety-three".