18489874006 has 8 divisors (see below), whose sum is σ = 27735417864. Its totient is φ = 9244734720.

The previous prime is 18489873973. The next prime is 18489874009. The reversal of 18489874006 is 60047898481.

It is a happy number.

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 (18489874009) 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, 73261 + ... + 205783.

It is an arithmetic number, because the mean of its divisors is an integer number (3466927233).

Almost surely, 2^18489874006 is an apocalyptic number.

18489874006 is a deficient number, since it is larger than the sum of its proper divisors (9245543858).

18489874006 is a wasteful number, since it uses less digits than its factorization.

18489874006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202286.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 18489874006 in words is "eighteen billion, four hundred eighty-nine million, eight hundred seventy-four thousand, six".