117512827505 has 32 divisors (see below), whose sum is σ = 154465711776. Its totient is φ = 85460189184.

The previous prime is 117512827469. The next prime is 117512827507. The reversal of 117512827505 is 505728215711.

It can be written as a sum of positive squares in 16 ways, for example, as 8928738064 + 108584089441 = 94492^2 + 329521^2 .

It is not a de Polignac number, because 117512827505 - 2¹⁰ = 117512826481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117512827507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294497 + ... + 567233.

It is an arithmetic number, because the mean of its divisors is an integer number (4827053493).

Almost surely, 2^117512827505 is an apocalyptic number.

It is an amenable number.

117512827505 is a deficient number, since it is larger than the sum of its proper divisors (36952884271).

117512827505 is a wasteful number, since it uses less digits than its factorization.

117512827505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272933.

The product of its (nonzero) digits is 196000, while the sum is 44.

The spelling of 117512827505 in words is "one hundred seventeen billion, five hundred twelve million, eight hundred twenty-seven thousand, five hundred five".