168364195847 has 2 divisors, whose sum is σ = 168364195848. Its totient is φ = 168364195846.

The previous prime is 168364195837. The next prime is 168364195849. The reversal of 168364195847 is 748591463861.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168364195847 is a prime.

Together with 168364195849, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168364195847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168364195849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84182097923 + 84182097924.

It is an arithmetic number, because the mean of its divisors is an integer number (84182097924).

Almost surely, 2^168364195847 is an apocalyptic number.

168364195847 is a deficient number, since it is larger than the sum of its proper divisors (1).

168364195847 is an equidigital number, since it uses as much as digits as its factorization.

168364195847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 62.

The spelling of 168364195847 in words is "one hundred sixty-eight billion, three hundred sixty-four million, one hundred ninety-five thousand, eight hundred forty-seven".