168424819684969 has 8 divisors (see below), whose sum is σ = 171059709627432. Its totient is φ = 165798786516480.

The previous prime is 168424819684873. The next prime is 168424819685011. The reversal of 168424819684969 is 969486918424861.

It can be written as a sum of positive squares in 4 ways, for example, as 17327130532569 + 151097689152400 = 4162587^2 + 12292180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168424819684969 is a prime.

It is a super-4 number, since 4×168424819684969⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168424819688969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214155164 + ... + 2214231229.

It is an arithmetic number, because the mean of its divisors is an integer number (21382463703429).

Almost surely, 2^{168424819684969} is an apocalyptic number.

It is an amenable number.

168424819684969 is a deficient number, since it is larger than the sum of its proper divisors (2634889942463).

168424819684969 is an equidigital number, since it uses as much as digits as its factorization.

168424819684969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428386987.

The product of its digits is 10319560704, while the sum is 85.

The spelling of 168424819684969 in words is "one hundred sixty-eight trillion, four hundred twenty-four billion, eight hundred nineteen million, six hundred eighty-four thousand, nine hundred sixty-nine".