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168424819684967 = 1673429729405833
BaseRepresentation
bin100110010010111001110101…
…100011000111011001100111
3211002100020220021021110012102
4212102321311203013121213
5134033433012314404332
61354113143301242315
750322202020062636
oct4622716543073147
9732306807243172
10168424819684967
114973562398254a
1216a81a3740339b
1372c9513ca8a31
142d83b3a3d751d
1514711b1b37062
hex992e758c7667

168424819684967 has 8 divisors (see below), whose sum is σ = 169438297481376. Its totient is φ = 167411400769152.

The previous prime is 168424819684873. The next prime is 168424819685011. The reversal of 168424819684967 is 769486918424861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 168424819684967 - 28 = 168424819684711 is a prime.

It is a super-3 number, since 3×1684248196849673 (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168424819684067) 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, 8975318 + ... + 20430515.

It is an arithmetic number, because the mean of its divisors is an integer number (21179787185172).

Almost surely, 2168424819684967 is an apocalyptic number.

168424819684967 is a deficient number, since it is larger than the sum of its proper divisors (1013477796409).

168424819684967 is a wasteful number, since it uses less digits than its factorization.

168424819684967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29440297.

The product of its digits is 8026324992, while the sum is 83.

The spelling of 168424819684967 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-seven".

Divisors: 1 167 34297 5727599 29405833 4910774111 1008531854401 168424819684967