520768480673 has 12 divisors (see below), whose sum is σ = 606879535572. Its totient is φ = 445571572320.

The previous prime is 520768480667. The next prime is 520768480679. The reversal of 520768480673 is 376084867025.

It is an interprime number because it is at equal distance from previous prime (520768480667) and next prime (520768480679).

It can be written as a sum of positive squares in 2 ways, for example, as 25570568464 + 495197912209 = 159908^2 + 703703^2 .

It is not a de Polignac number, because 520768480673 - 2⁸ = 520768480417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520768480679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9513038 + ... + 9567623.

It is an arithmetic number, because the mean of its divisors is an integer number (50573294631).

Almost surely, 2^520768480673 is an apocalyptic number.

It is an amenable number.

520768480673 is a deficient number, since it is larger than the sum of its proper divisors (86111054899).

520768480673 is a wasteful number, since it uses less digits than its factorization.

520768480673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19081232 (or 19081225 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 520768480673 in words is "five hundred twenty billion, seven hundred sixty-eight million, four hundred eighty thousand, six hundred seventy-three".