68125864063 has 2 divisors, whose sum is σ = 68125864064. Its totient is φ = 68125864062.

The previous prime is 68125864019. The next prime is 68125864099. The reversal of 68125864063 is 36046852186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68125864063 - 2³³ = 59535929471 is a prime.

It is a super-2 number, since 2×68125864063² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68125863998 and 68125864016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68125864013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34062932031 + 34062932032.

It is an arithmetic number, because the mean of its divisors is an integer number (34062932032).

Almost surely, 2^68125864063 is an apocalyptic number.

68125864063 is a deficient number, since it is larger than the sum of its proper divisors (1).

68125864063 is an equidigital number, since it uses as much as digits as its factorization.

68125864063 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 68125864063 in words is "sixty-eight billion, one hundred twenty-five million, eight hundred sixty-four thousand, sixty-three".