public String prettyCount(Number number) {
char[] suffix = {' ', 'k', 'M', 'B', 'T', 'P', 'E'};
long numValue = number.longValue();
int value = (int) Math.floor(Math.log10(numValue));
int base = value / 3;
if (value >= 3 && base < suffix.length) {
return new DecimalFormat("#0.0").format(numValue / Math.pow(10, base * 3)) + suffix[base];
} else {
return new DecimalFormat("#,##0").format(numValue);
}
}