117777506280 has 768 divisors, whose sum is σ = 450323712000. Its totient is φ = 24100263936.

The previous prime is 117777506237. The next prime is 117777506291. The reversal of 117777506280 is 82605777711.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 518843527 + ... + 518843753.

It is an arithmetic number, because the mean of its divisors is an integer number (586359000).

Almost surely, 2^117777506280 is an apocalyptic number.

117777506280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117777506280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225161856000).

117777506280 is an abundant number, since it is smaller than the sum of its proper divisors (332546205720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117777506280 is a wasteful number, since it uses less digits than its factorization.

117777506280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1152480, while the sum is 51.

The spelling of 117777506280 in words is "one hundred seventeen billion, seven hundred seventy-seven million, five hundred six thousand, two hundred eighty".