18000181834 has 16 divisors (see below), whose sum is σ = 27149780736. Its totient is φ = 8950392000.

The previous prime is 18000181831. The next prime is 18000181861. The reversal of 18000181834 is 43818100081.

It is a super-3 number, since 3×18000181834³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18000181834.

It is not an unprimeable number, because it can be changed into a prime (18000181831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231559 + ... + 299365.

It is an arithmetic number, because the mean of its divisors is an integer number (1696861296).

Almost surely, 2^18000181834 is an apocalyptic number.

18000181834 is a deficient number, since it is larger than the sum of its proper divisors (9149598902).

18000181834 is a wasteful number, since it uses less digits than its factorization.

18000181834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68541.

The product of its (nonzero) digits is 6144, while the sum is 34.

The spelling of 18000181834 in words is "eighteen billion, one hundred eighty-one thousand, eight hundred thirty-four".