168141864887 has 2 divisors, whose sum is σ = 168141864888. Its totient is φ = 168141864886.

The previous prime is 168141864881. The next prime is 168141864911. The reversal of 168141864887 is 788468141861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168141864887 - 2¹⁶ = 168141799351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168141864881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84070932443 + 84070932444.

It is an arithmetic number, because the mean of its divisors is an integer number (84070932444).

Almost surely, 2^168141864887 is an apocalyptic number.

168141864887 is a deficient number, since it is larger than the sum of its proper divisors (1).

168141864887 is an equidigital number, since it uses as much as digits as its factorization.

168141864887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16515072, while the sum is 62.

The spelling of 168141864887 in words is "one hundred sixty-eight billion, one hundred forty-one million, eight hundred sixty-four thousand, eight hundred eighty-seven".