118277819917 has 4 divisors (see below), whose sum is σ = 118285225056. Its totient is φ = 118270414780.

The previous prime is 118277819903. The next prime is 118277819939. The reversal of 118277819917 is 719918772811.

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 118277819917 - 2¹⁵ = 118277787149 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 (118277819987) 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, 3678559 + ... + 3710572.

It is an arithmetic number, because the mean of its divisors is an integer number (29571306264).

Almost surely, 2^118277819917 is an apocalyptic number.

It is an amenable number.

118277819917 is a deficient number, since it is larger than the sum of its proper divisors (7405139).

118277819917 is an equidigital number, since it uses as much as digits as its factorization.

118277819917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405138.

The product of its digits is 3556224, while the sum is 61.

The spelling of 118277819917 in words is "one hundred eighteen billion, two hundred seventy-seven million, eight hundred nineteen thousand, nine hundred seventeen".