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8068774554181 = 1110724128445533
BaseRepresentation
bin111010101101010100001…
…1100001110101001000101
31001120100220202211202002201
41311122220130032221011
52024144322241213211
625054424401234501
71461643520040445
oct165325034165105
931510822752081
108068774554181
112630a47979770
12aa3948332a31
13466b611a8233
141dc760620125
15ded49bb10c1
hex756a870ea45

8068774554181 has 16 divisors (see below), whose sum is σ = 8921429719488. Its totient is φ = 7236543340800.

The previous prime is 8068774554133. The next prime is 8068774554199. The reversal of 8068774554181 is 1814554778608.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8068774554181 is a prime.

It is a super-2 number, since 2×80687745541812 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8068774554481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13939110 + ... + 14506423.

It is an arithmetic number, because the mean of its divisors is an integer number (557589357468).

Almost surely, 28068774554181 is an apocalyptic number.

It is an amenable number.

8068774554181 is a deficient number, since it is larger than the sum of its proper divisors (852655165307).

8068774554181 is a wasteful number, since it uses less digits than its factorization.

8068774554181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28445892.

The product of its (nonzero) digits is 60211200, while the sum is 64.

The spelling of 8068774554181 in words is "eight trillion, sixty-eight billion, seven hundred seventy-four million, five hundred fifty-four thousand, one hundred eighty-one".

Divisors: 1 11 107 241 1177 2651 25787 283657 28445533 312900863 3043672031 6855373453 33480392341 75409107983 733524959471 8068774554181