68243608523011 has 2 divisors, whose sum is σ = 68243608523012. Its totient is φ = 68243608523010.

The previous prime is 68243608522967. The next prime is 68243608523021. The reversal of 68243608523011 is 11032580634286.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68243608523011 - 2³⁵ = 68209248784643 is a prime.

It is a super-2 number, since 2×68243608523011² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68243608523021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34121804261505 + 34121804261506.

It is an arithmetic number, because the mean of its divisors is an integer number (34121804261506).

Almost surely, 2^{68243608523011} is an apocalyptic number.

68243608523011 is a deficient number, since it is larger than the sum of its proper divisors (1).

68243608523011 is an equidigital number, since it uses as much as digits as its factorization.

68243608523011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 68243608523011 in words is "sixty-eight trillion, two hundred forty-three billion, six hundred eight million, five hundred twenty-three thousand, eleven".