18465844874 has 8 divisors (see below), whose sum is σ = 27724159008. Its totient is φ = 9224458540.

The previous prime is 18465844861. The next prime is 18465844913. The reversal of 18465844874 is 47844856481.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4229222 + ... + 4233585.

It is an arithmetic number, because the mean of its divisors is an integer number (3465519876).

Almost surely, 2^18465844874 is an apocalyptic number.

18465844874 is a deficient number, since it is larger than the sum of its proper divisors (9258314134).

18465844874 is a wasteful number, since it uses less digits than its factorization.

18465844874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8463900.

The product of its digits is 27525120, while the sum is 59.

The spelling of 18465844874 in words is "eighteen billion, four hundred sixty-five million, eight hundred forty-four thousand, eight hundred seventy-four".