2813243855681 has 16 divisors (see below), whose sum is σ = 3357025423104. Its totient is φ = 2305066002624.

The previous prime is 2813243855671. The next prime is 2813243855683. The reversal of 2813243855681 is 1865583423182.

It is a de Polignac number, because none of the positive numbers 2^k-2813243855681 is a prime.

It is a super-2 number, since 2×2813243855681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2813243855683) 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 15 ways as a sum of consecutive naturals, for example, 5213630 + ... + 5727863.

It is an arithmetic number, because the mean of its divisors is an integer number (209814088944).

Almost surely, 2^{2813243855681} is an apocalyptic number.

It is an amenable number.

2813243855681 is a deficient number, since it is larger than the sum of its proper divisors (543781567423).

2813243855681 is a wasteful number, since it uses less digits than its factorization.

2813243855681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10943120.

The product of its digits is 11059200, while the sum is 56.

The spelling of 2813243855681 in words is "two trillion, eight hundred thirteen billion, two hundred forty-three million, eight hundred fifty-five thousand, six hundred eighty-one".