68125864229 has 2 divisors, whose sum is σ = 68125864230. Its totient is φ = 68125864228.

The previous prime is 68125864187. The next prime is 68125864237. The reversal of 68125864229 is 92246852186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51882361729 + 16243502500 = 227777^2 + 127450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68125864229 is a prime.

It is a super-2 number, since 2×68125864229² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68125864249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34062932114 + 34062932115.

It is an arithmetic number, because the mean of its divisors is an integer number (34062932115).

Almost surely, 2^68125864229 is an apocalyptic number.

It is an amenable number.

68125864229 is a deficient number, since it is larger than the sum of its proper divisors (1).

68125864229 is an equidigital number, since it uses as much as digits as its factorization.

68125864229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3317760, while the sum is 53.

The spelling of 68125864229 in words is "sixty-eight billion, one hundred twenty-five million, eight hundred sixty-four thousand, two hundred twenty-nine".