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6768985178172 = 22371737128113127
BaseRepresentation
bin110001010000000011011…
…1101010000000000111100
3212222002221012211002200010
41202200012331100000330
51341400340201200142
622221343500103220
71266020522452140
oct142400675200074
925862835732603
106768985178172
11217a78a736498
12913a5b534b10
133a140a917999
14195899021220
15bb1244e2e9c
hex62806f5003c

6768985178172 has 96 divisors (see below), whose sum is σ = 19628981019648. Its totient is φ = 1771035853824.

The previous prime is 6768985178063. The next prime is 6768985178173. The reversal of 6768985178172 is 2718715898676.

It is a super-3 number, since 3×67689851781723 (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6768985178094 and 6768985178103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6768985178173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64003728 + ... + 64109399.

It is an arithmetic number, because the mean of its divisors is an integer number (204468552288).

Almost surely, 26768985178172 is an apocalyptic number.

It is an amenable number.

6768985178172 is an abundant number, since it is smaller than the sum of its proper divisors (12859995841476).

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

6768985178172 is a wasteful number, since it uses less digits than its factorization.

6768985178172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128113195 (or 128113193 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 75.

The spelling of 6768985178172 in words is "six trillion, seven hundred sixty-eight billion, nine hundred eighty-five million, one hundred seventy-eight thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 17 21 28 34 37 42 51 68 74 84 102 111 119 148 204 222 238 259 357 444 476 518 629 714 777 1036 1258 1428 1554 1887 2516 3108 3774 4403 7548 8806 13209 17612 26418 52836 128113127 256226254 384339381 512452508 768678762 896791889 1537357524 1793583778 2177923159 2690375667 3587167556 4355846318 4740185699 5380751334 6533769477 8711692636 9480371398 10761502668 13067538954 14220557097 15245462113 18960742796 26135077908 28441114194 30490924226 33181299893 45736386339 56882228388 60981848452 66362599786 80583156883 91472772678 99543899679 132725199572 161166313766 182945545356 199087799358 241749470649 322332627532 398175598716 483498941298 564082098181 966997882596 1128164196362 1692246294543 2256328392724 3384492589086 6768985178172