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12707552789568 = 263272131931127463
BaseRepresentation
bin1011100011101011010100…
…1010111000010001000000
31122222211102012110222001100
42320322311022320101000
53131200032003231233
643005434045534400
72451043001335500
oct270726512702100
948884365428040
1012707552789568
11405a2742a004a
121512985874400
1371241783b880
1431d098017a00
151708450d6813
hexb8eb52b8440

12707552789568 has 2016 divisors, whose sum is σ = 50079258378240. Its totient is φ = 3041851760640.

The previous prime is 12707552789563. The next prime is 12707552789611. The reversal of 12707552789568 is 86598725570721.

12707552789568 is a `hidden beast` number, since 1 + 2 + 7 + 0 + 7 + 5 + 52 + 7 + 8 + 9 + 568 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×127075527895682 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 12707552789496 and 12707552789505.

It is not an unprimeable number, because it can be changed into a prime (12707552789563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 27446118105 + ... + 27446118567.

Almost surely, 212707552789568 is an apocalyptic number.

12707552789568 is a gapful number since it is divisible by the number (18) 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 12707552789568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25039629189120).

12707552789568 is an abundant number, since it is smaller than the sum of its proper divisors (37371705588672).

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

12707552789568 is a wasteful number, since it uses less digits than its factorization.

12707552789568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 592704000, while the sum is 72.

The spelling of 12707552789568 in words is "twelve trillion, seven hundred seven billion, five hundred fifty-two million, seven hundred eighty-nine thousand, five hundred sixty-eight".