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26768865108 = 22317197666091
BaseRepresentation
bin11000111011100011…
…000111011101010100
32120002120100020120110
4120323203013131110
5414310312140413
620144125403020
71635233412336
oct307343073524
976076306513
1026768865108
1110397365617
125230a09470
1326a7b44b6b
14141d277456
15a6a12a8c3
hex63b8c7754

26768865108 has 48 divisors (see below), whose sum is σ = 66470652864. Its totient is φ = 8355432960.

The previous prime is 26768865107. The next prime is 26768865113. The reversal of 26768865108 is 80156886762.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26768865107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292858 + ... + 373233.

It is an arithmetic number, because the mean of its divisors is an integer number (1384805268).

Almost surely, 226768865108 is an apocalyptic number.

It is an amenable number.

26768865108 is an abundant number, since it is smaller than the sum of its proper divisors (39701787756).

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

26768865108 is a wasteful number, since it uses less digits than its factorization.

26768865108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666312 (or 666310 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 26768865108 in words is "twenty-six billion, seven hundred sixty-eight million, eight hundred sixty-five thousand, one hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 197 204 394 591 788 1182 2364 3349 6698 10047 13396 20094 40188 666091 1332182 1998273 2664364 3996546 7993092 11323547 22647094 33970641 45294188 67941282 131219927 135882564 262439854 393659781 524879708 787319562 1574639124 2230738759 4461477518 6692216277 8922955036 13384432554 26768865108