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68407272853875 = 32531393791154239
BaseRepresentation
bin11111000110111010011110…
…01100101101000101110011
322222012200010110111112202200
433203131033030231011303
532431241043322311000
6401253511201114243
720260155664203414
oct1743351714550563
9288180113445680
1068407272853875
111a8843a817447a
127809955328983
132c22a1679b6c7
1412c6d0303d80b
157d966bb76500
hex3e374f32d173

68407272853875 has 96 divisors (see below), whose sum is σ = 124530491904000. Its totient is φ = 36125802619200.

The previous prime is 68407272853873. The next prime is 68407272853901. The reversal of 68407272853875 is 57835827270486.

68407272853875 is a `hidden beast` number, since 6 + 8 + 40 + 7 + 27 + 28 + 538 + 7 + 5 = 666.

It is not a de Polignac number, because 68407272853875 - 21 = 68407272853873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68407272853873) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 58689006 + ... + 59843244.

It is an arithmetic number, because the mean of its divisors is an integer number (1297192624000).

Almost surely, 268407272853875 is an apocalyptic number.

68407272853875 is a deficient number, since it is larger than the sum of its proper divisors (56123219050125).

68407272853875 is a wasteful number, since it uses less digits than its factorization.

68407272853875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154778 (or 1154765 counting only the distinct ones).

The product of its (nonzero) digits is 1264435200, while the sum is 72.

The spelling of 68407272853875 in words is "sixty-eight trillion, four hundred seven billion, two hundred seventy-two million, eight hundred fifty-three thousand, eight hundred seventy-five".

Divisors: 1 3 5 9 15 25 45 75 125 139 225 375 379 417 695 1125 1137 1251 1895 2085 3411 3475 5685 6255 9475 10425 17055 17375 28425 31275 47375 52125 52681 85275 142125 156375 158043 263405 426375 474129 790215 1154239 1317025 2370645 3462717 3951075 5771195 6585125 10388151 11853225 17313585 19755375 28855975 51940755 59266125 86567925 144279875 160439221 259703775 432839625 437456581 481317663 802196105 1298518875 1312369743 1443952989 2187282905 2406588315 3937109229 4010980525 6561848715 7219764945 10936414525 12032941575 19685546145 20054902625 32809243575 36098824725 54682072625 60164707875 60806464759 98427730725 164046217875 180494123625 182419394277 304032323795 492138653625 547258182831 912096971385 1520161618975 2736290914155 4560484856925 7600808094875 13681454570775 22802424284625 68407272853875