18234660912 has 80 divisors (see below), whose sum is σ = 52935445248. Its totient is φ = 5366718720.

The previous prime is 18234660911. The next prime is 18234660979. The reversal of 18234660912 is 21906643281.

It is not an unprimeable number, because it can be changed into a prime (18234660911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620914 + ... + 649617.

Almost surely, 2^18234660912 is an apocalyptic number.

18234660912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18234660912 is an abundant number, since it is smaller than the sum of its proper divisors (34700784336).

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

18234660912 is a wasteful number, since it uses less digits than its factorization.

18234660912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270578 (or 1270572 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 18234660912 in words is "eighteen billion, two hundred thirty-four million, six hundred sixty thousand, nine hundred twelve".