118716493589 has 4 divisors (see below), whose sum is σ = 118910158956. Its totient is φ = 118522828224.

The previous prime is 118716493583. The next prime is 118716493603. The reversal of 118716493589 is 985394617811.

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 22503000100 + 96213493489 = 150010^2 + 310183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118716493589 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 (118716493583) 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, 96831764 + ... + 96832989.

It is an arithmetic number, because the mean of its divisors is an integer number (29727539739).

Almost surely, 2^118716493589 is an apocalyptic number.

It is an amenable number.

118716493589 is a deficient number, since it is larger than the sum of its proper divisors (193665367).

118716493589 is an equidigital number, since it uses as much as digits as its factorization.

118716493589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193665366.

The product of its digits is 13063680, while the sum is 62.

The spelling of 118716493589 in words is "one hundred eighteen billion, seven hundred sixteen million, four hundred ninety-three thousand, five hundred eighty-nine".