18575930090 has 16 divisors (see below), whose sum is σ = 35403537672. Its totient is φ = 6993291264.

The previous prime is 18575930069. The next prime is 18575930099. The reversal of 18575930090 is 9003957581.

It can be written as a sum of positive squares in 4 ways, for example, as 11233668121 + 7342261969 = 105989^2 + 85687^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18575930099) 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 7 ways as a sum of consecutive naturals, for example, 54634919 + ... + 54635258.

Almost surely, 2^18575930090 is an apocalyptic number.

18575930090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18575930090 is a deficient number, since it is larger than the sum of its proper divisors (16827607582).

18575930090 is a wasteful number, since it uses less digits than its factorization.

18575930090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109270201.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 18575930090 in words is "eighteen billion, five hundred seventy-five million, nine hundred thirty thousand, ninety".