520000779321 has 16 divisors (see below), whose sum is σ = 770382645120. Its totient is φ = 346662182160.

The previous prime is 520000779307. The next prime is 520000779341. The reversal of 520000779321 is 123977000025.

It is not a de Polignac number, because 520000779321 - 2⁵ = 520000779289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520000779341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466551 + ... + 3613443.

It is an arithmetic number, because the mean of its divisors is an integer number (48148915320).

Almost surely, 2^520000779321 is an apocalyptic number.

It is an amenable number.

520000779321 is a deficient number, since it is larger than the sum of its proper divisors (250381865799).

520000779321 is a wasteful number, since it uses less digits than its factorization.

520000779321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278013 (or 278007 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

Adding to 520000779321 its reverse (123977000025), we get a palindrome (643977779346).

The spelling of 520000779321 in words is "five hundred twenty billion, seven hundred seventy-nine thousand, three hundred twenty-one".