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68646862682262 = 232227119330374637
BaseRepresentation
bin11111001101111000101111…
…10111010111100010010110
3100000001120112220000220002100
433212330113313113202112
532444202233321313022
6401555533334422530
720313400152143544
oct1746742767274226
9300046486026070
1068646862682262
111a966a75400707
12784827b501a46
132c3c4a9ba9b27
1412d475103ad94
157e09e0ab01ac
hex3e6f17dd7896

68646862682262 has 96 divisors (see below), whose sum is σ = 149596796879712. Its totient is φ = 22749986299392.

The previous prime is 68646862682201. The next prime is 68646862682407. The reversal of 68646862682262 is 26228626864686.

It is a happy number.

68646862682262 is a `hidden beast` number, since 6 + 8 + 6 + 468 + 6 + 26 + 82 + 2 + 62 = 666.

It is a super-2 number, since 2×686468626822622 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14804151808 + ... + 14804156444.

It is an arithmetic number, because the mean of its divisors is an integer number (1558299967497).

Almost surely, 268646862682262 is an apocalyptic number.

68646862682262 is an abundant number, since it is smaller than the sum of its proper divisors (80949934197450).

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

68646862682262 is a wasteful number, since it uses less digits than its factorization.

68646862682262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102 (or 9099 counting only the distinct ones).

The product of its digits is 1528823808, while the sum is 72.

The spelling of 68646862682262 in words is "sixty-eight trillion, six hundred forty-six billion, eight hundred sixty-two million, six hundred eighty-two thousand, two hundred sixty-two".

Divisors: 1 2 3 6 9 18 227 454 681 1193 1362 2043 2386 3037 3579 4086 4637 6074 7158 9111 9274 10737 13911 18222 21474 27333 27822 41733 54666 83466 270811 541622 689399 812433 1052599 1378798 1624866 2068197 2105198 2437299 3157797 3623141 4136394 4874598 5531941 6204591 6315594 7246282 9473391 10869423 11063882 12409182 14082569 16595823 18946782 21738846 28165138 32608269 33191646 42247707 49787469 65216538 84495414 99574938 126743121 253486242 822453007 1255750607 1644906014 2467359021 2511501214 3196743163 3767251821 4934718042 6393486326 7402077063 7534503642 9590229489 11301755463 14804154126 16800504817 19180458978 22603510926 28770688467 33601009634 50401514451 57541376934 100803028902 151204543353 302409086706 3813714593459 7627429186918 11441143780377 22882287560754 34323431341131 68646862682262