10
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
108