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12768908567690 = 2511269579430601
BaseRepresentation
bin1011100111001111111001…
…0000100110010010001010
31200012200210012012102202002
42321303332100212102022
53133201211043131230
643053542225111002
72455344313005212
oct271637620462212
950180705172662
1012768908567690
11408329a0022a0
121522849788462
13718145133122
1432203898b242
15172236896545
hexb9cfe42648a

12768908567690 has 32 divisors (see below), whose sum is σ = 25073644426560. Its totient is φ = 4643211472000.

The previous prime is 12768908567689. The next prime is 12768908567711. The reversal of 12768908567690 is 9676580986721.

12768908567690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×127689085676902 (a number of 27 digits) contains 22 as substring.

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, 29438390 + ... + 29868990.

It is an arithmetic number, because the mean of its divisors is an integer number (783551388330).

Almost surely, 212768908567690 is an apocalyptic number.

12768908567690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12768908567690 is a deficient number, since it is larger than the sum of its proper divisors (12304735858870).

12768908567690 is a wasteful number, since it uses less digits than its factorization.

12768908567690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700198.

The product of its (nonzero) digits is 548674560, while the sum is 74.

The spelling of 12768908567690 in words is "twelve trillion, seven hundred sixty-eight billion, nine hundred eight million, five hundred sixty-seven thousand, six hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 269579 430601 539158 861202 1347895 2153005 2695790 2965369 4306010 4736611 5930738 9473222 14826845 23683055 29653690 47366110 116080986979 232161973958 580404934895 1160809869790 1276890856769 2553781713538 6384454283845 12768908567690