118657427589 has 12 divisors (see below), whose sum is σ = 171399901036. Its totient is φ = 79102256832.

The previous prime is 118657427579. The next prime is 118657427657. The reversal of 118657427589 is 985724756811.

118657427589 is a `hidden beast` number, since 1 + 1 + 8 + 6 + 5 + 7 + 42 + 7 + 589 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27418392225 + 91239035364 = 165585^2 + 302058^2 .

It is not a de Polignac number, because 118657427589 - 2³² = 114362460293 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 (118657427519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75369 + ... + 492945.

Almost surely, 2^118657427589 is an apocalyptic number.

It is an amenable number.

118657427589 is a deficient number, since it is larger than the sum of its proper divisors (52742473447).

118657427589 is a wasteful number, since it uses less digits than its factorization.

118657427589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449156 (or 449153 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 63.

The spelling of 118657427589 in words is "one hundred eighteen billion, six hundred fifty-seven million, four hundred twenty-seven thousand, five hundred eighty-nine".