68194120151 has 2 divisors, whose sum is σ = 68194120152. Its totient is φ = 68194120150.

The previous prime is 68194120103. The next prime is 68194120187. The reversal of 68194120151 is 15102149186.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68194120151 - 2⁶ = 68194120087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68194120651) 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, 34097060075 + 34097060076.

It is an arithmetic number, because the mean of its divisors is an integer number (34097060076).

Almost surely, 2^68194120151 is an apocalyptic number.

68194120151 is a deficient number, since it is larger than the sum of its proper divisors (1).

68194120151 is an equidigital number, since it uses as much as digits as its factorization.

68194120151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 68194120151 in words is "sixty-eight billion, one hundred ninety-four million, one hundred twenty thousand, one hundred fifty-one".