18129045075 has 24 divisors (see below), whose sum is σ = 30037595328. Its totient is φ = 9648101280.

The previous prime is 18129045047. The next prime is 18129045091. The reversal of 18129045075 is 57054092181.

It is not a de Polignac number, because 18129045075 - 2¹⁷ = 18128914003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223777 + ... + 293826.

It is an arithmetic number, because the mean of its divisors is an integer number (1251566472).

Almost surely, 2^18129045075 is an apocalyptic number.

18129045075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18129045075 is a deficient number, since it is larger than the sum of its proper divisors (11908550253).

18129045075 is a wasteful number, since it uses less digits than its factorization.

18129045075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518083 (or 518078 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 18129045075 in words is "eighteen billion, one hundred twenty-nine million, forty-five thousand, seventy-five".