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9689318066437 = 17242617868353
BaseRepresentation
bin1000110011111111100001…
…0111001000100100000101
31021022021211020100202222021
42030333320113020210011
52232222210411111222
632335113345003141
72020013222442322
oct214777027104405
937267736322867
109689318066437
1130a62424a2a59
121105a310234b1
13553911287389
14256d73473b49
1511c094ac1ac7
hex8cff85c8905

9689318066437 has 12 divisors (see below), whose sum is σ = 10295221897636. Its totient is φ = 9117216829440.

The previous prime is 9689318066431. The next prime is 9689318066473. The reversal of 9689318066437 is 7346608139869.

It can be written as a sum of positive squares in 6 ways, for example, as 4927840575876 + 4761477490561 = 2219874^2 + 2182081^2 .

It is not a de Polignac number, because 9689318066437 - 223 = 9689309677829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9689318066431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2702748 + ... + 5165605.

Almost surely, 29689318066437 is an apocalyptic number.

It is an amenable number.

9689318066437 is a deficient number, since it is larger than the sum of its proper divisors (605903831199).

9689318066437 is a wasteful number, since it uses less digits than its factorization.

9689318066437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7872648 (or 7872631 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 70.

The spelling of 9689318066437 in words is "nine trillion, six hundred eighty-nine billion, three hundred eighteen million, sixty-six thousand, four hundred thirty-seven".

Divisors: 1 17 289 4261 72437 1231429 7868353 133762001 2273954017 33527052133 569959886261 9689318066437