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68497666679486 = 211171084571688677
BaseRepresentation
bin11111001001100010110110…
…00101110010001010111110
322222112022110011102200001202
433210301123011302022332
532434231210132220421
6401403221010335502
720266536015064532
oct1744613305621276
9288468404380052
1068497666679486
111a909774123580
127823381b8a592
132c2b3c107ca95
1412cb43a375bc2
157dbbac89710b
hex3e4c5b1722be

68497666679486 has 32 divisors (see below), whose sum is σ = 118681613763552. Its totient is φ = 29303527080960.

The previous prime is 68497666679461. The next prime is 68497666679551.

68497666679486 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 68497666679395 and 68497666679404.

It is a congruent number.

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, 39718580 + ... + 41407256.

It is an arithmetic number, because the mean of its divisors is an integer number (3708800430111).

Almost surely, 268497666679486 is an apocalyptic number.

68497666679486 is a deficient number, since it is larger than the sum of its proper divisors (50183947084066).

68497666679486 is a wasteful number, since it uses less digits than its factorization.

68497666679486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797164.

The product of its digits is 189621927936, while the sum is 92.

The spelling of 68497666679486 in words is "sixty-eight trillion, four hundred ninety-seven billion, six hundred sixty-six million, six hundred seventy-nine thousand, four hundred eighty-six".

Divisors: 1 2 11 17 22 34 187 374 108457 216914 1193027 1688677 1843769 2386054 3377354 3687538 18575447 20281459 28707509 37150894 40562918 57415018 315782599 631565198 183148841389 366297682778 2014637255279 3113530303613 4029274510558 6227060607226 34248833339743 68497666679486