18000181835 has 16 divisors (see below), whose sum is σ = 21681324000. Its totient is φ = 14346180096.

The previous prime is 18000181831. The next prime is 18000181861. The reversal of 18000181835 is 53818100081.

It is a cyclic number.

It is not a de Polignac number, because 18000181835 - 2² = 18000181831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18000181795 and 18000181804.

It is not an unprimeable number, because it can be changed into a prime (18000181831) 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 15 ways as a sum of consecutive naturals, for example, 1487891 + ... + 1499939.

It is an arithmetic number, because the mean of its divisors is an integer number (1355082750).

Almost surely, 2^18000181835 is an apocalyptic number.

18000181835 is a deficient number, since it is larger than the sum of its proper divisors (3681142165).

18000181835 is a wasteful number, since it uses less digits than its factorization.

18000181835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150.

The product of its (nonzero) digits is 7680, while the sum is 35.

The spelling of 18000181835 in words is "eighteen billion, one hundred eighty-one thousand, eight hundred thirty-five".