1818672016242 has 32 divisors (see below), whose sum is σ = 3680156880000. Its totient is φ = 599129422848.

The previous prime is 1818672016199. The next prime is 1818672016253. The reversal of 1818672016242 is 2426102768181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1818672016191 and 1818672016200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933423 + ... + 5289234.

It is an arithmetic number, because the mean of its divisors is an integer number (115004902500).

Almost surely, 2^{1818672016242} is an apocalyptic number.

1818672016242 is an abundant number, since it is smaller than the sum of its proper divisors (1861484863758).

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

1818672016242 is a wasteful number, since it uses less digits than its factorization.

1818672016242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10223010.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 1818672016242 in words is "one trillion, eight hundred eighteen billion, six hundred seventy-two million, sixteen thousand, two hundred forty-two".