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68464777746486 = 23113967126148701
BaseRepresentation
bin11111001000100101100101…
…10000011101100000110110
322222102011120002002202122010
433210102302300131200312
532433211331100341421
6401340141254345050
720264263005550512
oct1744226260354066
9288364502082563
1068464777746486
111a8a682718a410
127818b2365b186
132c2827c320394
1412c99da397142
157dadd5318076
hex3e44b2c1d836

68464777746486 has 32 divisors (see below), whose sum is σ = 149381468027136. Its totient is φ = 20746378580000.

The previous prime is 68464777746457. The next prime is 68464777746493.

68464777746486 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×684647777464863 (a number of 42 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68464777746399 and 68464777746408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10456065 + ... + 15692636.

It is an arithmetic number, because the mean of its divisors is an integer number (4668170875848).

Almost surely, 268464777746486 is an apocalyptic number.

68464777746486 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68464777746486 is an abundant number, since it is smaller than the sum of its proper divisors (80916690280650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68464777746486 is a wasteful number, since it uses less digits than its factorization.

68464777746486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26188388.

The product of its digits is 50982027264, while the sum is 84.

The spelling of 68464777746486 in words is "sixty-eight trillion, four hundred sixty-four billion, seven hundred seventy-seven million, seven hundred forty-six thousand, four hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 66 39671 79342 119013 238026 436381 872762 1309143 2618286 26148701 52297402 78446103 156892206 287635711 575271422 862907133 1725814266 1037345117371 2074690234742 3112035352113 6224070704226 11410796291081 22821592582162 34232388873243 68464777746486