118513585979 has 4 divisors (see below), whose sum is σ = 119115177984. Its totient is φ = 117911993976.

The previous prime is 118513585969. The next prime is 118513585997. The reversal of 118513585979 is 979585315811.

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 118513585979 - 2⁴ = 118513585963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118513585969) 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, 300795707 + ... + 300796100.

It is an arithmetic number, because the mean of its divisors is an integer number (29778794496).

Almost surely, 2^118513585979 is an apocalyptic number.

118513585979 is a deficient number, since it is larger than the sum of its proper divisors (601592005).

118513585979 is an equidigital number, since it uses as much as digits as its factorization.

118513585979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601592004.

The product of its digits is 13608000, while the sum is 62.

The spelling of 118513585979 in words is "one hundred eighteen billion, five hundred thirteen million, five hundred eighty-five thousand, nine hundred seventy-nine".