20018273818282 has 4 divisors (see below), whose sum is σ = 30027410727426. Its totient is φ = 10009136909140.

The previous prime is 20018273818273. The next prime is 20018273818297. The reversal of 20018273818282 is 28281837281002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19613906280081 + 404367538201 = 4428759^2 + 635899^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5004568454569 + ... + 5004568454572.

Almost surely, 2^{20018273818282} is an apocalyptic number.

20018273818282 is a deficient number, since it is larger than the sum of its proper divisors (10009136909144).

20018273818282 is a wasteful number, since it uses less digits than its factorization.

20018273818282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009136909143.

The product of its (nonzero) digits is 1376256, while the sum is 52.

The spelling of 20018273818282 in words is "twenty trillion, eighteen billion, two hundred seventy-three million, eight hundred eighteen thousand, two hundred eighty-two".