18133812294 has 16 divisors (see below), whose sum is σ = 39057442032. Its totient is φ = 5579634528.

The previous prime is 18133812239. The next prime is 18133812299. The reversal of 18133812294 is 49221833181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18133812299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116242309 + ... + 116242464.

It is an arithmetic number, because the mean of its divisors is an integer number (2441090127).

Almost surely, 2^18133812294 is an apocalyptic number.

18133812294 is an abundant number, since it is smaller than the sum of its proper divisors (20923629738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18133812294 is a wasteful number, since it uses less digits than its factorization.

18133812294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232484791.

The product of its digits is 82944, while the sum is 42.

The spelling of 18133812294 in words is "eighteen billion, one hundred thirty-three million, eight hundred twelve thousand, two hundred ninety-four".