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68862666626886 = 23113728199290183
BaseRepresentation
bin11111010100001010101101…
…10010000101011101000110
3100000211012120122020010222010
433222011112302011131012
533011221220124030021
6402243023342115050
720335110034333056
oct1752052662053506
9300735518203863
1068862666626886
111aa3a547079370
12788206787ba86
132c5694c479512
141300d84017566
157e64216ee976
hex3ea156c85746

68862666626886 has 32 divisors (see below), whose sum is σ = 154306515886848. Its totient is φ = 20303488931040.

The previous prime is 68862666626879. The next prime is 68862666626891.

68862666626886 is nontrivially palindromic in base 10.

68862666626886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68862666626799 and 68862666626808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14099642650 + ... + 14099647533.

It is an arithmetic number, because the mean of its divisors is an integer number (4822078621464).

Almost surely, 268862666626886 is an apocalyptic number.

68862666626886 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68862666626886 is an abundant number, since it is smaller than the sum of its proper divisors (85443849259962).

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

68862666626886 is a wasteful number, since it uses less digits than its factorization.

68862666626886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28199290236.

The product of its digits is 27518828544, while the sum is 84.

The spelling of 68862666626886 in words is "sixty-eight trillion, eight hundred sixty-two billion, six hundred sixty-six million, six hundred twenty-six thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 37 66 74 111 222 407 814 1221 2442 28199290183 56398580366 84597870549 169195741098 310192192013 620384384026 930576576039 1043373736771 1861153152078 2086747473542 3130121210313 6260242420626 11477111104481 22954222208962 34431333313443 68862666626886