It is not possible to answer the question since a single number, such as 1266918, does not make a sequence. Also, there is no simple partitioning of the given number into a set of numbers which make up a straightforward sequence.
108
3467910 is a single number: it is not a pattern!
Look at the difference between each number and the next number.
The next number is -21
The next number in the series 1 2 4 8 10 20 22 is
59 is the next number in this series.
The next number in the series is 67.
A single number such as 61205041320 does not make a series.
A single number, such as 12848384 does not make a series.
To find the next number in the series 364758, we can look for a pattern. Observing the digits, it appears that the series alternates between increasing and decreasing sequences. After 8, the next logical number could be 9, following the pattern of increasing by 1. Therefore, the next number in the series may be 9.
One number does not make a sequence (nor a series).
There is no series of number: just one very large number!
8
243
73791170
20
25