117128775250 has 32 divisors (see below), whose sum is σ = 219828913200. Its totient is φ = 46731030400.

The previous prime is 117128775233. The next prime is 117128775289. The reversal of 117128775250 is 52577821711.

117128775250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 5465201329 + 111663573921 = 73927^2 + 334161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117128775250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504955 + ... + 699454.

Almost surely, 2^117128775250 is an apocalyptic number.

117128775250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117128775250 is a deficient number, since it is larger than the sum of its proper divisors (102700137950).

117128775250 is a wasteful number, since it uses less digits than its factorization.

117128775250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204815 (or 1204805 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 46.

The spelling of 117128775250 in words is "one hundred seventeen billion, one hundred twenty-eight million, seven hundred seventy-five thousand, two hundred fifty".