117777580 has 48 divisors (see below), whose sum is σ = 264670560. Its totient is φ = 43891200.

The previous prime is 117777577. The next prime is 117777589. The reversal of 117777580 is 85777711.

It is not an unprimeable number, because it can be changed into a prime (117777589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20640 + ... + 25720.

It is an arithmetic number, because the mean of its divisors is an integer number (5513970).

Almost surely, 2^117777580 is an apocalyptic number.

117777580 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 117777580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132335280).

117777580 is an abundant number, since it is smaller than the sum of its proper divisors (146892980).

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

117777580 is a wasteful number, since it uses less digits than its factorization.

117777580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170 (or 5168 counting only the distinct ones).

The product of its (nonzero) digits is 96040, while the sum is 43.

The square root of 117777580 is about 10852.5379520184. The cubic root of 117777580 is about 490.1784439625.

The spelling of 117777580 in words is "one hundred seventeen million, seven hundred seventy-seven thousand, five hundred eighty".