312383741569 has 3 divisors (see below), whose sum is σ = 312384300483. Its totient is φ = 312383182656.

The previous prime is 312383741567. The next prime is 312383741581. The reversal of 312383741569 is 965147383213.

The square root of 312383741569 is 558913.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 965147383213 = 13 ⋅74242106401.

It can be written as a sum of positive squares in only one way, i.e., 14608348225 + 297775393344 = 120865^2 + 545688^2 .

It is not a de Polignac number, because 312383741569 - 2¹ = 312383741567 is a prime.

It is a super-4 number, since 4×312383741569⁴ (a number of 47 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312383741567) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 279457 + ... + 838369.

It is an arithmetic number, because the mean of its divisors is an integer number (104128100161).

Almost surely, 2^312383741569 is an apocalyptic number.

312383741569 is the 558913-rd square number.

312383741569 is the 279457-th centered octagonal number.

It is an amenable number.

312383741569 is a deficient number, since it is larger than the sum of its proper divisors (558914).

312383741569 is an frugal number, since it uses more digits than its factorization.

312383741569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117826 (or 558913 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 312383741569 in words is "three hundred twelve billion, three hundred eighty-three million, seven hundred forty-one thousand, five hundred sixty-nine".