318718877053 has 4 divisors (see below), whose sum is σ = 319428719100. Its totient is φ = 318009035008.

The previous prime is 318718877051. The next prime is 318718877129. The reversal of 318718877053 is 350778817813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350778817813 = 138829 ⋅2526697.

It can be written as a sum of positive squares in 2 ways, for example, as 218899529689 + 99819347364 = 467867^2 + 315942^2 .

It is a cyclic number.

It is not a de Polignac number, because 318718877053 - 2¹ = 318718877051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318718877051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354920350 + ... + 354921247.

It is an arithmetic number, because the mean of its divisors is an integer number (79857179775).

Almost surely, 2^318718877053 is an apocalyptic number.

It is an amenable number.

318718877053 is a deficient number, since it is larger than the sum of its proper divisors (709842047).

318718877053 is an equidigital number, since it uses as much as digits as its factorization.

318718877053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709842046.

The product of its (nonzero) digits is 7902720, while the sum is 58.

The spelling of 318718877053 in words is "three hundred eighteen billion, seven hundred eighteen million, eight hundred seventy-seven thousand, fifty-three".