There is no series: one number, however large, does not make a series.
One possibility is 1040, using the rule
Un = (39n4 - 370 n3 + 1263n2 - 1790n + 88)/6 for n = 1, 2, 3, ...
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.
One number does not make a sequence (nor a series).
There is no series of number: just one very large number!
73791170
20
8
243
25
108