118459840427 has 4 divisors (see below), whose sum is σ = 119790849960. Its totient is φ = 117128830896.

The previous prime is 118459840321. The next prime is 118459840451. The reversal of 118459840427 is 724048954811.

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

It is a cyclic number.

It is not a de Polignac number, because 118459840427 - 2¹⁸ = 118459578283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118459840727) 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, 665504633 + ... + 665504810.

It is an arithmetic number, because the mean of its divisors is an integer number (29947712490).

Almost surely, 2^118459840427 is an apocalyptic number.

118459840427 is a deficient number, since it is larger than the sum of its proper divisors (1331009533).

118459840427 is an equidigital number, since it uses as much as digits as its factorization.

118459840427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331009532.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 118459840427 in words is "one hundred eighteen billion, four hundred fifty-nine million, eight hundred forty thousand, four hundred twenty-seven".