All statistics are based on contigs of size >= 500 bp, unless otherwise noted (e.g., "# contigs (>= 0 bp)" and "Total length (>= 0 bp)" include all contigs).
Suggestion: assembly jelly.out contains continuous fragments of N's of length >= 10 bp. You may consider rerunning QUAST using --scaffolds (-s) option!

Assembly                    jelly.out 
# contigs (>= 0 bp)         696946    
# contigs (>= 1000 bp)      159429    
# contigs (>= 5000 bp)      68750     
# contigs (>= 10000 bp)     35320     
# contigs (>= 25000 bp)     7048      
# contigs (>= 50000 bp)     894       
Total length (>= 0 bp)      1253001795
Total length (>= 1000 bp)   1140787867
Total length (>= 5000 bp)   932263178 
Total length (>= 10000 bp)  691523275 
Total length (>= 25000 bp)  261425921 
Total length (>= 50000 bp)  57741906  
# contigs                   213264    
Largest contig              194507    
Total length                1180563613
GC (%)                      36.57     
N50                         12433     
N75                         5983      
L50                         26241     
L75                         60202     
# N's per 100 kbp           6580.58