18043017925 has 24 divisors (see below), whose sum is σ = 22908462336. Its totient is φ = 14092995840.

The previous prime is 18043017913. The next prime is 18043017929. The reversal of 18043017925 is 52971034081.

It is not a de Polignac number, because 18043017925 - 2¹⁵ = 18042985157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18043017929) 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 23 ways as a sum of consecutive naturals, for example, 141612 + ... + 236938.

It is an arithmetic number, because the mean of its divisors is an integer number (954519264).

Almost surely, 2^18043017925 is an apocalyptic number.

It is an amenable number.

18043017925 is a deficient number, since it is larger than the sum of its proper divisors (4865444411).

18043017925 is a wasteful number, since it uses less digits than its factorization.

18043017925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95517 (or 95512 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 18043017925 in words is "eighteen billion, forty-three million, seventeen thousand, nine hundred twenty-five".