18003412437 has 64 divisors (see below), whose sum is σ = 27321753600. Its totient is φ = 10477209600.

The previous prime is 18003412421. The next prime is 18003412459. The reversal of 18003412437 is 73421430081.

It is not a de Polignac number, because 18003412437 - 2⁴ = 18003412421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18003412398 and 18003412407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18003412487) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9226812 + ... + 9228762.

It is an arithmetic number, because the mean of its divisors is an integer number (426902400).

Almost surely, 2^18003412437 is an apocalyptic number.

18003412437 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18003412437 is a deficient number, since it is larger than the sum of its proper divisors (9318341163).

18003412437 is a wasteful number, since it uses less digits than its factorization.

18003412437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its (nonzero) digits is 16128, while the sum is 33.

The spelling of 18003412437 in words is "eighteen billion, three million, four hundred twelve thousand, four hundred thirty-seven".