18009487886 has 8 divisors (see below), whose sum is σ = 29092249704. Its totient is φ = 8312071320.

The previous prime is 18009487883. The next prime is 18009487907. The reversal of 18009487886 is 68878490081.

18009487886 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18009487883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346336280 + ... + 346336331.

It is an arithmetic number, because the mean of its divisors is an integer number (3636531213).

Almost surely, 2^18009487886 is an apocalyptic number.

18009487886 is a deficient number, since it is larger than the sum of its proper divisors (11082761818).

18009487886 is a wasteful number, since it uses less digits than its factorization.

18009487886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692672626.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The spelling of 18009487886 in words is "eighteen billion, nine million, four hundred eighty-seven thousand, eight hundred eighty-six".