18028265149 has 8 divisors (see below), whose sum is σ = 18061818912. Its totient is φ = 17994733680.

The previous prime is 18028265147. The next prime is 18028265161. The reversal of 18028265149 is 94156282081.

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 18028265149 - 2¹ = 18028265147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18028265099 and 18028265108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18028265141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894859 + ... + 2901079.

It is an arithmetic number, because the mean of its divisors is an integer number (2257727364).

Almost surely, 2^18028265149 is an apocalyptic number.

It is an amenable number.

18028265149 is a deficient number, since it is larger than the sum of its proper divisors (33553763).

18028265149 is an equidigital number, since it uses as much as digits as its factorization.

18028265149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 18028265149 in words is "eighteen billion, twenty-eight million, two hundred sixty-five thousand, one hundred forty-nine".