118689894 has 16 divisors (see below), whose sum is σ = 263755440. Its totient is φ = 39563280.

The previous prime is 118689881. The next prime is 118689931. The reversal of 118689894 is 498986811.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 2197961 = 118689894 / (1 + 1 + 8 + 6 + 8 + 9 + 8 + 9 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 118689894.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098927 + ... + 1099034.

It is an arithmetic number, because the mean of its divisors is an integer number (16484715).

Almost surely, 2^118689894 is an apocalyptic number.

118689894 is an abundant number, since it is smaller than the sum of its proper divisors (145065546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118689894 is a wasteful number, since it uses less digits than its factorization.

118689894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197972 (or 2197966 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 118689894 is about 10894.4891573676. The cubic root of 118689894 is about 491.4408430468.

The spelling of 118689894 in words is "one hundred eighteen million, six hundred eighty-nine thousand, eight hundred ninety-four".