118418642499 has 4 divisors (see below), whose sum is σ = 157891523336. Its totient is φ = 78945761664.

The previous prime is 118418642443. The next prime is 118418642509. The reversal of 118418642499 is 994246814811.

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

It is not a de Polignac number, because 118418642499 - 2¹⁵ = 118418609731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118418642599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19736440414 + ... + 19736440419.

It is an arithmetic number, because the mean of its divisors is an integer number (39472880834).

Almost surely, 2^118418642499 is an apocalyptic number.

118418642499 is a deficient number, since it is larger than the sum of its proper divisors (39472880837).

118418642499 is an equidigital number, since it uses as much as digits as its factorization.

118418642499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39472880836.

The product of its digits is 3981312, while the sum is 57.

The spelling of 118418642499 in words is "one hundred eighteen billion, four hundred eighteen million, six hundred forty-two thousand, four hundred ninety-nine".