117381597653 has 4 divisors (see below), whose sum is σ = 117386406828. Its totient is φ = 117376788480.

The previous prime is 117381597617. The next prime is 117381597659. The reversal of 117381597653 is 356795183711.

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 30723779524 + 86657818129 = 175282^2 + 294377^2 .

It is a cyclic number.

It is not a de Polignac number, because 117381597653 - 2²⁴ = 117364820437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117381597659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2367788 + ... + 2416853.

It is an arithmetic number, because the mean of its divisors is an integer number (29346601707).

Almost surely, 2^117381597653 is an apocalyptic number.

It is an amenable number.

117381597653 is a deficient number, since it is larger than the sum of its proper divisors (4809175).

117381597653 is an equidigital number, since it uses as much as digits as its factorization.

117381597653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809174.

The product of its digits is 4762800, while the sum is 56.

The spelling of 117381597653 in words is "one hundred seventeen billion, three hundred eighty-one million, five hundred ninety-seven thousand, six hundred fifty-three".