117209895712 has 72 divisors (see below), whose sum is σ = 289080225756. Its totient is φ = 46368741888.

The previous prime is 117209895709. The next prime is 117209895713. The reversal of 117209895712 is 217598902711.

It can be written as a sum of positive squares in 2 ways, for example, as 91225745296 + 25984150416 = 302036^2 + 161196^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 117209895712.

It is not an unprimeable number, because it can be changed into a prime (117209895713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2854663 + ... + 2895430.

Almost surely, 2^117209895712 is an apocalyptic number.

It is an amenable number.

117209895712 is an abundant number, since it is smaller than the sum of its proper divisors (171870330044).

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

117209895712 is a wasteful number, since it uses less digits than its factorization.

117209895712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5750130 (or 5750115 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 52.

The spelling of 117209895712 in words is "one hundred seventeen billion, two hundred nine million, eight hundred ninety-five thousand, seven hundred twelve".