118184371817 has 4 divisors (see below), whose sum is σ = 118306590336. Its totient is φ = 118062153300.

The previous prime is 118184371813. The next prime is 118184371819. The reversal of 118184371817 is 718173481811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 118184371817 - 2² = 118184371813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118184371813) 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, 61107809 + ... + 61109742.

It is an arithmetic number, because the mean of its divisors is an integer number (29576647584).

Almost surely, 2^118184371817 is an apocalyptic number.

It is an amenable number.

118184371817 is a deficient number, since it is larger than the sum of its proper divisors (122218519).

118184371817 is an equidigital number, since it uses as much as digits as its factorization.

118184371817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122218518.

The product of its digits is 301056, while the sum is 50.

The spelling of 118184371817 in words is "one hundred eighteen billion, one hundred eighty-four million, three hundred seventy-one thousand, eight hundred seventeen".