918321161234 has 8 divisors (see below), whose sum is σ = 1378012980540. Its totient is φ = 458983501056.

The previous prime is 918321161179. The next prime is 918321161237. The reversal of 918321161234 is 432161123819.

It can be written as a sum of positive squares in 2 ways, for example, as 906275440225 + 12045721009 = 951985^2 + 109753^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 918321161191 and 918321161200.

It is not an unprimeable number, because it can be changed into a prime (918321161237) 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 3 ways as a sum of consecutive naturals, for example, 88533299 + ... + 88543670.

Almost surely, 2^918321161234 is an apocalyptic number.

918321161234 is a deficient number, since it is larger than the sum of its proper divisors (459691819306).

918321161234 is a wasteful number, since it uses less digits than its factorization.

918321161234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177079564.

The product of its digits is 62208, while the sum is 41.

The spelling of 918321161234 in words is "nine hundred eighteen billion, three hundred twenty-one million, one hundred sixty-one thousand, two hundred thirty-four".