68125864099 has 2 divisors, whose sum is σ = 68125864100. Its totient is φ = 68125864098.

The previous prime is 68125864063. The next prime is 68125864187. The reversal of 68125864099 is 99046852186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68125864099 - 2³³ = 59535929507 is a prime.

It is a super-2 number, since 2×68125864099² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68125864019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34062932049 + 34062932050.

It is an arithmetic number, because the mean of its divisors is an integer number (34062932050).

Almost surely, 2^68125864099 is an apocalyptic number.

68125864099 is a deficient number, since it is larger than the sum of its proper divisors (1).

68125864099 is an equidigital number, since it uses as much as digits as its factorization.

68125864099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 68125864099 in words is "sixty-eight billion, one hundred twenty-five million, eight hundred sixty-four thousand, ninety-nine".