68118871 has 2 divisors, whose sum is σ = 68118872. Its totient is φ = 68118870.

The previous prime is 68118859. The next prime is 68118877. The reversal of 68118871 is 17881186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68118871 - 2⁹ = 68118359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68118877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34059435 + 34059436.

It is an arithmetic number, because the mean of its divisors is an integer number (34059436).

Almost surely, 2^68118871 is an apocalyptic number.

68118871 is a deficient number, since it is larger than the sum of its proper divisors (1).

68118871 is an equidigital number, since it uses as much as digits as its factorization.

68118871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 40.

The square root of 68118871 is about 8253.4157171440. The cubic root of 68118871 is about 408.4032101804.

The spelling of 68118871 in words is "sixty-eight million, one hundred eighteen thousand, eight hundred seventy-one".