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12759420673519 = 1319153133741067
BaseRepresentation
bin1011100110101100100010…
…1111001001110111101111
31200011210021222001110202021
42321223020233021313233
53133022243143023034
643045332534411011
72454560224150162
oct271531057116757
950153258043667
1012759420673519
11407a270372a43
121520a40200a67
13717292578c70
143217b8851ad9
15171d7d9436b4
hexb9ac8bc9def

12759420673519 has 16 divisors (see below), whose sum is σ = 14473568529280. Its totient is φ = 11150747491680.

The previous prime is 12759420673511. The next prime is 12759420673579. The reversal of 12759420673519 is 91537602495721.

It is a cyclic number.

It is not a de Polignac number, because 12759420673519 - 23 = 12759420673511 is a prime.

It is a super-2 number, since 2×127594206735192 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12759420673511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16492377 + ... + 17248690.

It is an arithmetic number, because the mean of its divisors is an integer number (904598033080).

Almost surely, 212759420673519 is an apocalyptic number.

12759420673519 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12759420673519 is a deficient number, since it is larger than the sum of its proper divisors (1714147855761).

12759420673519 is a wasteful number, since it uses less digits than its factorization.

12759420673519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33742630.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 12759420673519 in words is "twelve trillion, seven hundred fifty-nine billion, four hundred twenty million, six hundred seventy-three thousand, five hundred nineteen".

Divisors: 1 13 19 247 1531 19903 29089 378157 33741067 438633871 641080273 8334043549 51657573577 671548456501 981493897963 12759420673519