18087837229 has 8 divisors (see below), whose sum is σ = 22551069888. Its totient is φ = 14094418560.

The previous prime is 18087837223. The next prime is 18087837263. The reversal of 18087837229 is 92273878081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18087837229 - 2⁷ = 18087837101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18087837229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18087837223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117453412 + ... + 117453565.

It is an arithmetic number, because the mean of its divisors is an integer number (2818883736).

Almost surely, 2^18087837229 is an apocalyptic number.

It is an amenable number.

18087837229 is a deficient number, since it is larger than the sum of its proper divisors (4463232659).

18087837229 is a wasteful number, since it uses less digits than its factorization.

18087837229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234906995.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 18087837229 in words is "eighteen billion, eighty-seven million, eight hundred thirty-seven thousand, two hundred twenty-nine".