118408194689 has 8 divisors (see below), whose sum is σ = 118506586632. Its totient is φ = 118309847040.

The previous prime is 118408194683. The next prime is 118408194733. The reversal of 118408194689 is 986491804811.

It can be written as a sum of positive squares in 4 ways, for example, as 18557250625 + 99850944064 = 136225^2 + 315992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118408194689 - 2¹⁶ = 118408129153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118408194683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7093457 + ... + 7110129.

It is an arithmetic number, because the mean of its divisors is an integer number (14813323329).

Almost surely, 2^118408194689 is an apocalyptic number.

It is an amenable number.

118408194689 is a deficient number, since it is larger than the sum of its proper divisors (98391943).

118408194689 is a wasteful number, since it uses less digits than its factorization.

118408194689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22147.

The product of its (nonzero) digits is 3981312, while the sum is 59.

The spelling of 118408194689 in words is "one hundred eighteen billion, four hundred eight million, one hundred ninety-four thousand, six hundred eighty-nine".