520924979713 has 4 divisors (see below), whose sum is σ = 520939234900. Its totient is φ = 520910724528.

The previous prime is 520924979711. The next prime is 520924979719. The reversal of 520924979713 is 317979429025.

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 352998774769 + 167926204944 = 594137^2 + 409788^2 .

It is a cyclic number.

It is not a de Polignac number, because 520924979713 - 2¹ = 520924979711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520924979711) 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, 7072638 + ... + 7145911.

It is an arithmetic number, because the mean of its divisors is an integer number (130234808725).

Almost surely, 2^520924979713 is an apocalyptic number.

It is an amenable number.

520924979713 is a deficient number, since it is larger than the sum of its proper divisors (14255187).

520924979713 is a wasteful number, since it uses less digits than its factorization.

520924979713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14255186.

The product of its (nonzero) digits is 8573040, while the sum is 58.

The spelling of 520924979713 in words is "five hundred twenty billion, nine hundred twenty-four million, nine hundred seventy-nine thousand, seven hundred thirteen".