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7682537084121 = 3819218012
BaseRepresentation
bin110111111001011101011…
…1001001101010011011001
31000012102222012220100000000
41233302322321031103121
52001332313443142441
624201150412003213
71422021300520434
oct157627271152331
930172865810000
107682537084121
1124a216699a859
12a40b16160509
134395c9c02643
141c7ba019a81b
15d4c9163e2b6
hex6fcbae4d4d9

7682537084121 has 81 divisors (see below), whose sum is σ = 12168382161663. Its totient is φ = 4849434554400.

The previous prime is 7682537084093. The next prime is 7682537084137. The reversal of 7682537084121 is 1214807352867.

The square root of 7682537084121 is 2771739.

It is a perfect power (a square), and thus also a powerful number.

7682537084121 is a `hidden beast` number, since 7 + 6 + 8 + 2 + 537 + 0 + 84 + 1 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 997623413721 + 6684913670400 = 998811^2 + 2585520^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 7682537084121 - 29 = 7682537083609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7682537084921) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 4265705421 + ... + 4265707221.

Almost surely, 27682537084121 is an apocalyptic number.

7682537084121 is the 2771739-th square number.

7682537084121 is the 1385870-th centered octagonal number.

It is an amenable number.

7682537084121 is a deficient number, since it is larger than the sum of its proper divisors (4485845077542).

7682537084121 is an frugal number, since it uses more digits than its factorization.

7682537084121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 1823 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 7682537084121 in words is "seven trillion, six hundred eighty-two billion, five hundred thirty-seven million, eighty-four thousand, one hundred twenty-one".

Divisors: 1 3 9 19 27 57 81 171 243 361 513 729 1083 1539 1801 2187 3249 4617 5403 6561 9747 13851 16209 29241 34219 41553 48627 87723 102657 124659 145881 263169 307971 437643 650161 789507 923913 1312929 1950483 2368521 2771739 3243601 3938787 5851449 8315217 9730803 11816361 17554347 24945651 29192409 52663041 61628419 74836953 87577227 157989123 184885257 224510859 262731681 473967369 554655771 788195043 1170939961 1421902107 1663967313 2364585129 3512819883 4265706321 4991901939 7093755387 10538459649 14975705817 21281266161 31615378947 44927117451 94846136841 134781352353 284538410523 404344057059 853615231569 2560845694707 7682537084121