117384780168505 has 4 divisors (see below), whose sum is σ = 140861736202212. Its totient is φ = 93907824134800.

The previous prime is 117384780168493. The next prime is 117384780168619. The reversal of 117384780168505 is 505861087483711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54333351085456 + 63051429083049 = 7371116^2 + 7940493^2 .

It is not a de Polignac number, because 117384780168505 - 2⁷ = 117384780168377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11738478016846 + ... + 11738478016855.

It is an arithmetic number, because the mean of its divisors is an integer number (35215434050553).

Almost surely, 2^{117384780168505} is an apocalyptic number.

It is an amenable number.

117384780168505 is a deficient number, since it is larger than the sum of its proper divisors (23476956033707).

117384780168505 is an equidigital number, since it uses as much as digits as its factorization.

117384780168505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23476956033706.

The product of its (nonzero) digits is 45158400, while the sum is 64.

The spelling of 117384780168505 in words is "one hundred seventeen trillion, three hundred eighty-four billion, seven hundred eighty million, one hundred sixty-eight thousand, five hundred five".