118640496827 has 4 divisors (see below), whose sum is σ = 118976589240. Its totient is φ = 118304404416.

The previous prime is 118640496817. The next prime is 118640496829. The reversal of 118640496827 is 728694046811.

It is a happy number.

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 118640496827 - 2³² = 114345529531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118640496829) 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, 168045677 + ... + 168046382.

It is an arithmetic number, because the mean of its divisors is an integer number (29744147310).

Almost surely, 2^118640496827 is an apocalyptic number.

118640496827 is a deficient number, since it is larger than the sum of its proper divisors (336092413).

118640496827 is an equidigital number, since it uses as much as digits as its factorization.

118640496827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336092412.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 118640496827 in words is "one hundred eighteen billion, six hundred forty million, four hundred ninety-six thousand, eight hundred twenty-seven".