117381519720 has 384 divisors, whose sum is σ = 393788304000. Its totient is φ = 30315479040.

The previous prime is 117381519713. The next prime is 117381519733. The reversal of 117381519720 is 27915183711.

117381519720 is a `hidden beast` number, since 117 + 381 + 51 + 97 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 556310415 + ... + 556310625.

It is an arithmetic number, because the mean of its divisors is an integer number (1025490375).

Almost surely, 2^117381519720 is an apocalyptic number.

117381519720 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 117381519720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196894152000).

117381519720 is an abundant number, since it is smaller than the sum of its proper divisors (276406784280).

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

117381519720 is a wasteful number, since it uses less digits than its factorization.

117381519720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The spelling of 117381519720 in words is "one hundred seventeen billion, three hundred eighty-one million, five hundred nineteen thousand, seven hundred twenty".