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68450850868678 = 21712233167519787
BaseRepresentation
bin11111001000001011101001…
…01001101000110111000110
322222100211121111020001211221
433210011310221220313012
532432444320310244203
6401325515313150554
720263260616211305
oct1744056451506706
9288324544201757
1068450850868678
111a8a092a894a43
12781629755b45a
132c26b6cc04195
1412c90788b643c
157da86c82aabd
hex3e4174a68dc6

68450850868678 has 32 divisors (see below), whose sum is σ = 108839515428864. Its totient is φ = 32175601690752.

The previous prime is 68450850868651. The next prime is 68450850868721. The reversal of 68450850868678 is 87686805805486.

68450850868678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 68450850868598 and 68450850868607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131430301 + ... + 131950087.

It is an arithmetic number, because the mean of its divisors is an integer number (3401234857152).

Almost surely, 268450850868678 is an apocalyptic number.

68450850868678 is a deficient number, since it is larger than the sum of its proper divisors (40388664560186).

68450850868678 is a wasteful number, since it uses less digits than its factorization.

68450850868678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524196.

The product of its (nonzero) digits is 4954521600, while the sum is 79.

The spelling of 68450850868678 in words is "sixty-eight trillion, four hundred fifty billion, eight hundred fifty million, eight hundred sixty-eight thousand, six hundred seventy-eight".

Divisors: 1 2 17 34 1223 2446 3167 6334 20791 41582 53839 107678 519787 1039574 3873241 7746482 8836379 17672758 65845097 131690194 635699501 1271399002 1646165429 3292330858 10806891517 21613783034 27984812293 55969624586 2013260319667 4026520639334 34225425434339 68450850868678