523313277617 has 4 divisors (see below), whose sum is σ = 563568145140. Its totient is φ = 483058410096.

The previous prime is 523313277607. The next prime is 523313277703. The reversal of 523313277617 is 716772313325.

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

It can be written as a sum of positive squares in 2 ways, for example, as 170846648896 + 352466628721 = 413336^2 + 593689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523313277617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523313277607) 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, 20127433742 + ... + 20127433767.

It is an arithmetic number, because the mean of its divisors is an integer number (140892036285).

Almost surely, 2^523313277617 is an apocalyptic number.

It is an amenable number.

523313277617 is a deficient number, since it is larger than the sum of its proper divisors (40254867523).

523313277617 is a wasteful number, since it uses less digits than its factorization.

523313277617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40254867522.

The product of its digits is 1111320, while the sum is 47.

The spelling of 523313277617 in words is "five hundred twenty-three billion, three hundred thirteen million, two hundred seventy-seven thousand, six hundred seventeen".