18510085010 has 16 divisors (see below), whose sum is σ = 35278044696. Its totient is φ = 6968502528.

The previous prime is 18510084977. The next prime is 18510085031. The reversal of 18510085010 is 1058001581.

It can be written as a sum of positive squares in 4 ways, for example, as 15775108801 + 2734976209 = 125599^2 + 52297^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54441257 + ... + 54441596.

Almost surely, 2^18510085010 is an apocalyptic number.

18510085010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18510085010 is a deficient number, since it is larger than the sum of its proper divisors (16767959686).

18510085010 is a wasteful number, since it uses less digits than its factorization.

18510085010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108882877.

The product of its (nonzero) digits is 1600, while the sum is 29.

Adding to 18510085010 its reverse (1058001581), we get a palindrome (19568086591).

The spelling of 18510085010 in words is "eighteen billion, five hundred ten million, eighty-five thousand, ten".