168100644883879 has 2 divisors, whose sum is σ = 168100644883880. Its totient is φ = 168100644883878.

The previous prime is 168100644883861. The next prime is 168100644883901. The reversal of 168100644883879 is 978388446001861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168100644883879 - 2⁷ = 168100644883751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168100644883859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84050322441939 + 84050322441940.

It is an arithmetic number, because the mean of its divisors is an integer number (84050322441940).

Almost surely, 2^{168100644883879} is an apocalyptic number.

168100644883879 is a deficient number, since it is larger than the sum of its proper divisors (1).

168100644883879 is an equidigital number, since it uses as much as digits as its factorization.

168100644883879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 445906944, while the sum is 73.

The spelling of 168100644883879 in words is "one hundred sixty-eight trillion, one hundred billion, six hundred forty-four million, eight hundred eighty-three thousand, eight hundred seventy-nine".