18259045349 has 8 divisors (see below), whose sum is σ = 18319220832. Its totient is φ = 18198900720.

The previous prime is 18259045331. The next prime is 18259045361. The reversal of 18259045349 is 94354095281.

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

It is a cyclic number.

It is not a de Polignac number, because 18259045349 - 2⁸ = 18259045093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18259045297 and 18259045306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18259045249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2048747 + ... + 2057639.

It is an arithmetic number, because the mean of its divisors is an integer number (2289902604).

Almost surely, 2^18259045349 is an apocalyptic number.

It is an amenable number.

18259045349 is a deficient number, since it is larger than the sum of its proper divisors (60175483).

18259045349 is an equidigital number, since it uses as much as digits as its factorization.

18259045349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 18259045349 in words is "eighteen billion, two hundred fifty-nine million, forty-five thousand, three hundred forty-nine".