18001430044 has 24 divisors (see below), whose sum is σ = 34714747760. Its totient is φ = 8115133824.

The previous prime is 18001430009. The next prime is 18001430077. The reversal of 18001430044 is 44003410081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4023129 + ... + 4027600.

Almost surely, 2^18001430044 is an apocalyptic number.

It is an amenable number.

18001430044 is a deficient number, since it is larger than the sum of its proper divisors (16713317716).

18001430044 is a wasteful number, since it uses less digits than its factorization.

18001430044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050789 (or 8050787 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 18001430044 in words is "eighteen billion, one million, four hundred thirty thousand, forty-four".