117784331520 has 72 divisors (see below), whose sum is σ = 376173721056. Its totient is φ = 31409154048.

The previous prime is 117784331443. The next prime is 117784331531. The reversal of 117784331520 is 25133487711.

It is a super-2 number, since 2×117784331520² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15332662 + ... + 15340341.

Almost surely, 2^117784331520 is an apocalyptic number.

117784331520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117784331520 is an abundant number, since it is smaller than the sum of its proper divisors (258389389536).

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

117784331520 is an equidigital number, since it uses as much as digits as its factorization.

117784331520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30673027 (or 30673013 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 117784331520 in words is "one hundred seventeen billion, seven hundred eighty-four million, three hundred thirty-one thousand, five hundred twenty".