68107376209 has 2 divisors, whose sum is σ = 68107376210. Its totient is φ = 68107376208.

The previous prime is 68107376171. The next prime is 68107376213. The reversal of 68107376209 is 90267370186.

It is a happy number.

68107376209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67987955025 + 119421184 = 260745^2 + 10928^2 .

It is a cyclic number.

It is not a de Polignac number, because 68107376209 - 2¹⁵ = 68107343441 is a prime.

It is a super-2 number, since 2×68107376209² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68107370209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34053688104 + 34053688105.

It is an arithmetic number, because the mean of its divisors is an integer number (34053688105).

Almost surely, 2^68107376209 is an apocalyptic number.

It is an amenable number.

68107376209 is a deficient number, since it is larger than the sum of its proper divisors (1).

68107376209 is an equidigital number, since it uses as much as digits as its factorization.

68107376209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 68107376209 in words is "sixty-eight billion, one hundred seven million, three hundred seventy-six thousand, two hundred nine".