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12768086336 = 261960117471
BaseRepresentation
bin10111110010000100…
…11000100101000000
31012221211101222201112
423321002120211000
5202122112230321
65510544222452
7631255641335
oct137102304500
935854358645
1012768086336
115462285275
12258400aa28
131286322695
14891a3a98c
154eade1a5b
hex2f9098940

12768086336 has 56 divisors (see below), whose sum is σ = 26716085760. Its totient is φ = 6037632000.

The previous prime is 12768086333. The next prime is 12768086417. The reversal of 12768086336 is 63368086721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768086333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722081 + ... + 739551.

It is an arithmetic number, because the mean of its divisors is an integer number (477072960).

Almost surely, 212768086336 is an apocalyptic number.

12768086336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12768086336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13358042880).

12768086336 is an abundant number, since it is smaller than the sum of its proper divisors (13947999424).

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

12768086336 is a wasteful number, since it uses less digits than its factorization.

12768086336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103 (or 18093 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 12768086336 in words is "twelve billion, seven hundred sixty-eight million, eighty-six thousand, three hundred thirty-six".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 601 608 1202 1216 2404 4808 9616 11419 17471 19232 22838 34942 38464 45676 69884 91352 139768 182704 279536 331949 365408 559072 663898 730816 1118144 1327796 2655592 5311184 10500071 10622368 21000142 21244736 42000284 84000568 168001136 199501349 336002272 399002698 672004544 798005396 1596010792 3192021584 6384043168 12768086336